v1.0.45-oss (#221)

* Implemented ML-based comic panel detection and a panel popup viewer.

* Optimized `ComicPanelDetector` for performance and memory efficiency.

* Optimized comic panel detection performance by introducing a dedicated single-thread dispatcher for ML tasks, replacing mutex-based synchronization.

* Refactored system UI handling and layout padding in `PdfViewerScreen`.

* Refactor `PdfViewerScreen.kt` by extracting components and logic into specialized files.

* replace hardcoded padding with dynamic header height and adjust IME layout logic

* Improve `PdfTextBox` interaction and visual consistency during zoom and pan.

* improve PDF text box dragging and scaling behavior across zoom levels

* optimize color scheme calculation using remember and expand text dimming coverage

* Implement in-app language selection and per-app language preferences.

* Improve PDF lock stability in `PdfVerticalReader`

* Implement "Preserve Image Colors" option for PDF themes

* Optimize TOC locate in ReaderDrawer

* Update library and home screen UI components

* smoother page turn animation in epub pagination mode

* Implement automatic page skipping for TTS when no text is found in PDF viewer

* Refine status bar handling and window insets across main screens

* Optimize ViewModel initialization and integrate AndroidX SplashScreen

* Move ComicPanelDetector to debug source set and introduce IPanelDetector interface

* Optimize TOC scrolling in PdfNavigationDrawerContent

* Bump version to 1.0.45(45)

app/build.gradle.kts

@@ -30,8 +30,10 @@ android {
         applicationId = "com.aryan.reader"
         minSdk = 26
         targetSdk = 35
-        versionCode = 44
-        versionName = "1.0.43"
+        versionCode = 45
+        versionName = "1.0.45"
+
+        resourceConfigurations += setOf("en", "ar", "de", "tr")
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         externalNativeBuild {
@@ -227,6 +229,13 @@ dependencies {
     implementation("org.zwobble.mammoth:mammoth:1.4.2")
 
     implementation("com.materialkolor:material-kolor:5.0.0-alpha07")
+
+    debugImplementation("org.tensorflow:tensorflow-lite:2.17.0")
+    debugImplementation("org.tensorflow:tensorflow-lite-support:0.5.0")
+    debugImplementation("org.tensorflow:tensorflow-lite-gpu:2.17.0")
+    debugImplementation("org.tensorflow:tensorflow-lite-gpu-api:2.17.0")
+
+    implementation("androidx.core:core-splashscreen:1.2.0")
 }
 
 spotless {

app/src/debug/java/com/aryan/reader/ml/ComicPanelDetector.kt

@@ -0,0 +1,202 @@
+package com.aryan.reader.ml
+
+import android.graphics.Bitmap
+import android.graphics.RectF
+import org.tensorflow.lite.DataType
+import org.tensorflow.lite.Interpreter
+import org.tensorflow.lite.gpu.CompatibilityList
+import org.tensorflow.lite.gpu.GpuDelegate
+import org.tensorflow.lite.support.common.ops.NormalizeOp
+import org.tensorflow.lite.support.image.ImageProcessor
+import org.tensorflow.lite.support.image.TensorImage
+import org.tensorflow.lite.support.image.ops.ResizeOp
+import timber.log.Timber
+import java.io.File
+import java.nio.ByteBuffer
+import java.nio.ByteOrder
+import kotlin.math.abs
+import kotlin.math.max
+import kotlin.math.min
+
+data class PanelResult(
+    val rect: RectF,
+    val confidence: Float
+)
+
+class ComicPanelDetector(modelFile: File) : IPanelDetector {
+
+    private var interpreter: Interpreter? = null
+    private val inputSize = 640
+    private var gpuDelegate: GpuDelegate? = null
+
+    private var isTransposed: Boolean = false
+    private var numBoxes: Int = 0
+    private var numElementsPerBox: Int = 0
+    private var outputBuffer: ByteBuffer? = null
+    private var floatOutputBuffer: java.nio.FloatBuffer? = null
+    private var flatOutput: FloatArray? = null
+
+    private val preAllocatedTensorImage = TensorImage(DataType.FLOAT32)
+
+    private val imageProcessor = ImageProcessor.Builder()
+        .add(ResizeOp(inputSize, inputSize, ResizeOp.ResizeMethod.BILINEAR))
+        .add(NormalizeOp(0f, 255f))
+        .build()
+
+    init {
+        try {
+            val compatList = CompatibilityList()
+            val options = Interpreter.Options().apply {
+                numThreads = 4
+
+                if (compatList.isDelegateSupportedOnThisDevice) {
+                    val delegateOptions = compatList.bestOptionsForThisDevice.apply {
+                        isPrecisionLossAllowed = true
+
+                        val cacheDir = File(modelFile.parentFile, "gpu_cache")
+                        if (!cacheDir.exists()) cacheDir.mkdirs()
+                        setSerializationParams(cacheDir.absolutePath, "${modelFile.name}_${modelFile.length()}")
+                    }
+                    gpuDelegate = GpuDelegate(delegateOptions)
+                    addDelegate(gpuDelegate)
+                    Timber.i("GPU Delegate added successfully with serialization caching.")
+                } else {
+                    Timber.i("GPU not supported on this device. Falling back to 4 CPU threads.")
+                }
+            }
+            interpreter = Interpreter(modelFile, options)
+
+            val outputTensor = interpreter!!.getOutputTensor(0)
+            val shape = outputTensor.shape()
+            Timber.d("Model Output Tensor Shape: ${shape.contentToString()}")
+
+            isTransposed = shape.size == 3 && shape[1] > shape[2]
+            numBoxes = if (isTransposed) shape[1] else shape[2]
+            numElementsPerBox = if (isTransposed) shape[2] else shape[1]
+
+            val outputBytes = numBoxes * numElementsPerBox * 4
+            outputBuffer = ByteBuffer.allocateDirect(outputBytes).order(ByteOrder.nativeOrder())
+            floatOutputBuffer = outputBuffer!!.asFloatBuffer()
+            flatOutput = FloatArray(numBoxes * numElementsPerBox)
+
+            Timber.i("TFLite Model loaded and buffers allocated successfully from ${modelFile.absolutePath}")
+        } catch (e: Exception) {
+            Timber.e(e, "Error loading TFLite model or allocating buffers")
+        }
+    }
+
+    override fun detectPanels(bitmap: Bitmap, confidenceThreshold: Float, iouThreshold: Float): List<RectF> {
+        val tflite = interpreter ?: return emptyList()
+        val buffer = outputBuffer ?: return emptyList()
+        val floatBuf = floatOutputBuffer ?: return emptyList()
+        val flatOut = flatOutput ?: return emptyList()
+
+        if (numBoxes <= 0) {
+            Timber.w("Detector not initialized correctly: numBoxes is 0")
+            return emptyList()
+        }
+
+        preAllocatedTensorImage.load(bitmap)
+        val processedImage = imageProcessor.process(preAllocatedTensorImage)
+
+        buffer.rewind()
+        val startTime = System.currentTimeMillis()
+        tflite.run(processedImage.buffer, buffer)
+        Timber.d("Inference took ${System.currentTimeMillis() - startTime}ms")
+
+        floatBuf.rewind()
+        floatBuf.get(flatOut)
+
+        var maxCoord = 0f
+        for (i in 0 until min(100, numBoxes)) {
+            val cx = if (isTransposed) flatOutput!![i * numElementsPerBox + 0] else flatOutput!![0 * numBoxes + i]
+            if (cx > maxCoord) maxCoord = cx
+        }
+        val isNormalized = maxCoord <= 1.5f
+        Timber.d("Are coordinates normalized? $isNormalized (Sample Max: $maxCoord)")
+
+        val scaleX = if (isNormalized) bitmap.width.toFloat() else bitmap.width.toFloat() / inputSize
+        val scaleY = if (isNormalized) bitmap.height.toFloat() else bitmap.height.toFloat() / inputSize
+
+        val parsedResults = mutableListOf<PanelResult>()
+
+        for (i in 0 until numBoxes) {
+            val confidence = if (isTransposed) flatOutput!![i * numElementsPerBox + 4] else flatOutput!![4 * numBoxes + i]
+
+            if (confidence > confidenceThreshold) {
+                val cx = if (isTransposed) flatOutput!![i * numElementsPerBox + 0] else flatOutput!![0 * numBoxes + i]
+                val cy = if (isTransposed) flatOutput!![i * numElementsPerBox + 1] else flatOutput!![1 * numBoxes + i]
+                val w = if (isTransposed) flatOutput!![i * numElementsPerBox + 2] else flatOutput!![2 * numBoxes + i]
+                val h = if (isTransposed) flatOutput!![i * numElementsPerBox + 3] else flatOutput!![3 * numBoxes + i]
+
+                val scaledCx = cx * scaleX
+                val scaledCy = cy * scaleY
+                val scaledW = w * scaleX
+                val scaledH = h * scaleY
+
+                val left = scaledCx - scaledW / 2
+                val top = scaledCy - scaledH / 2
+                val right = scaledCx + scaledW / 2
+                val bottom = scaledCy + scaledH / 2
+
+                parsedResults.add(
+                    PanelResult(
+                        rect = RectF(left, top, right, bottom),
+                        confidence = confidence
+                    )
+                )
+            }
+        }
+
+        val finalPanels = applyNMS(parsedResults, iouThreshold)
+
+        return finalPanels.map { it.rect }.sortedWith { r1, r2 ->
+            if (abs(r1.top - r2.top) < (bitmap.height * 0.05f)) {
+                r2.right.compareTo(r1.right)
+            } else {
+                r1.top.compareTo(r2.top)
+            }
+        }
+    }
+
+    private fun applyNMS(boxes: List<PanelResult>, iouThreshold: Float): List<PanelResult> {
+        val sortedBoxes = boxes.sortedByDescending { it.confidence }.toMutableList()
+        val selected = mutableListOf<PanelResult>()
+
+        while (sortedBoxes.isNotEmpty()) {
+            val current = sortedBoxes.removeAt(0)
+            selected.add(current)
+            sortedBoxes.removeAll { box ->
+                calculateIoU(current.rect, box.rect) > iouThreshold
+            }
+        }
+        return selected
+    }
+
+    private fun calculateIoU(box1: RectF, box2: RectF): Float {
+        val intersectionLeft = max(box1.left, box2.left)
+        val intersectionTop = max(box1.top, box2.top)
+        val intersectionRight = min(box1.right, box2.right)
+        val intersectionBottom = min(box1.bottom, box2.bottom)
+
+        if (intersectionRight < intersectionLeft || intersectionBottom < intersectionTop) return 0f
+
+        val intersectionArea = (intersectionRight - intersectionLeft) * (intersectionBottom - intersectionTop)
+        val box1Area = (box1.right - box1.left) * (box1.bottom - box1.top)
+        val box2Area = (box2.right - box2.left) * (box2.bottom - box2.top)
+
+        return intersectionArea / (box1Area + box2Area - intersectionArea)
+    }
+
+    override fun close() {
+        interpreter?.close()
+        interpreter = null
+
+        gpuDelegate?.close()
+        gpuDelegate = null
+
+        outputBuffer = null
+        floatOutputBuffer = null
+        flatOutput = null
+    }
+}

app/src/main/AndroidManifest.xml

@@ -34,6 +34,7 @@
 
     <application
         android:name=".MyApplication"
+        android:localeConfig="@xml/locales_config"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
@@ -41,7 +42,7 @@
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
-        android:theme="@style/Theme.Reader"
+        android:theme="@style/Theme.App.Starting"
         android:networkSecurityConfig="@xml/network_security_config">
 
         <activity

app/src/main/java/com/aryan/reader/Common.kt

@@ -1814,6 +1814,18 @@ fun loadReaderThemeId(context: Context): String {
     return prefs.getString(PREF_READER_THEME, "system") ?: "system"
 }
 
+const val PREF_EXCLUDE_IMAGES = "exclude_images"
+
+fun saveExcludeImages(context: Context, excludeImages: Boolean) {
+    val prefs = context.getSharedPreferences("reader_prefs", Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PREF_EXCLUDE_IMAGES, excludeImages) }
+}
+
+fun loadExcludeImages(context: Context): Boolean {
+    val prefs = context.getSharedPreferences("reader_prefs", Context.MODE_PRIVATE)
+    return prefs.getBoolean(PREF_EXCLUDE_IMAGES, false)
+}
+
 fun saveCustomThemes(context: Context, themes: List<ReaderTheme>) {
     val prefs = context.getSharedPreferences("reader_prefs", Context.MODE_PRIVATE)
     val jsonArray = JSONArray()
@@ -1868,6 +1880,9 @@ private fun calculateContrastRatio(color1: Color, color2: Color): Float {
 fun ReaderThemePanel(
     isVisible: Boolean,
     currentThemeId: String,
+    excludeImages: Boolean = false,
+    onExcludeImagesChange: (Boolean) -> Unit = {},
+    showExcludeImagesOption: Boolean = false,
     customThemes: List<ReaderTheme>,
     builtInThemes: List<ReaderTheme> = BuiltInThemes,
     onThemeSelected: (String) -> Unit,
@@ -1920,6 +1935,23 @@ fun ReaderThemePanel(
                         modifier = Modifier.padding(bottom = 16.dp)
                     )
 
+                    if (showExcludeImagesOption) {
+                        Row(
+                            modifier = Modifier.fillMaxWidth().padding(bottom = 16.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                            horizontalArrangement = Arrangement.SpaceBetween
+                        ) {
+                            Column(modifier = Modifier.weight(1f)) {
+                                Text("Preserve Image Colors", style = MaterialTheme.typography.bodyLarge, fontWeight = FontWeight.SemiBold)
+                                Text("Keep original image colors when theme changes", style = MaterialTheme.typography.bodySmall, color = Color.Gray)
+                            }
+                            androidx.compose.material3.Switch(
+                                checked = excludeImages,
+                                onCheckedChange = onExcludeImagesChange
+                            )
+                        }
+                    }
+
                     Text(stringResource(R.string.theme_presets), style = MaterialTheme.typography.labelLarge, color = MaterialTheme.colorScheme.primary)
                     Spacer(Modifier.height(8.dp))
                     ThemeGrid(themes = builtInThemes, currentThemeId = currentThemeId, onThemeSelected = onThemeSelected)

app/src/main/java/com/aryan/reader/HomeScreen.kt

@@ -22,13 +22,14 @@
 
 package com.aryan.reader
 
+import android.annotation.SuppressLint
 import android.app.Activity
 import android.content.Context
 import android.content.ContextWrapper
 import androidx.activity.compose.BackHandler
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.foundation.BorderStroke
+import androidx.appcompat.app.AppCompatDelegate
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
@@ -41,6 +42,7 @@ import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.aspectRatio
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
@@ -57,20 +59,18 @@ import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.grid.items
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.Check
 import androidx.compose.material.icons.filled.Close
-import androidx.compose.material.icons.filled.Cloud
-import androidx.compose.material.icons.filled.Folder
 import androidx.compose.material.icons.filled.FolderSpecial
 import androidx.compose.material.icons.filled.FormatListNumbered
 import androidx.compose.material.icons.filled.Info
 import androidx.compose.material.icons.filled.Menu
 import androidx.compose.material.icons.filled.MoreVert
 import androidx.compose.material.icons.filled.PhoneAndroid
-import androidx.compose.material.icons.filled.PushPin
 import androidx.compose.material.icons.filled.VerifiedUser
 import androidx.compose.material.icons.outlined.AccountCircle
 import androidx.compose.material3.AlertDialog
@@ -132,6 +132,7 @@ import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.core.os.LocaleListCompat
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.NavHostController
 import coil.compose.AsyncImage
@@ -183,6 +184,7 @@ fun HomeScreen(
         var showStrictFilterDialog by remember { mutableStateOf(false) }
         var showClearBookCacheDialog by remember { mutableStateOf(false) }
         var showClearReflowCacheDialog by remember { mutableStateOf(false) }
+        var showLanguageDialog by remember { mutableStateOf(false) }
 
         val feedbackResult =
             navController.currentBackStackEntry?.savedStateHandle?.getLiveData<String>("banner_message")
@@ -335,7 +337,9 @@ fun HomeScreen(
                                         showStrictFilterDialog = true
                                     }
                                 },
-                                onAppThemeClick = { showAppThemePanel = true }
+                                onAppThemeClick = { showAppThemePanel = true },
+                                onTestPanelDetectionClick = { viewModel.testPanelDetection(context) },
+                                onLanguageClick = { showLanguageDialog = true }
                             )
                         } else {
                             ContextualTopAppBar(
@@ -509,6 +513,10 @@ fun HomeScreen(
                         )
                     }
 
+                    if (showLanguageDialog) {
+                        LanguageSelectionDialog(onDismiss = { showLanguageDialog = false })
+                    }
+
                     if (showAppThemePanel) {
                         AppThemeBottomSheet(
                             uiState = uiState,
@@ -749,6 +757,8 @@ fun RecentFileCard(
     isDownloading: Boolean,
 ) {
     val context = LocalContext.current
+    val progressPercent = item.progressPercentage?.takeIf { it > 0f }?.coerceIn(0f, 100f)?.toInt()
+    val authorText = item.author?.takeIf { it.isNotBlank() && !it.equals("Unknown", ignoreCase = true) } ?: " "
     val placeholder = when (item.type) {
         FileType.PDF -> R.drawable.pdf_placeholder
         FileType.EPUB, FileType.MOBI, FileType.FB2, FileType.MD, FileType.TXT, FileType.HTML, FileType.CBZ, FileType.CBR, FileType.CB7, FileType.DOCX, FileType.ODT, FileType.FODT -> R.drawable.epub_placeholder
@@ -757,88 +767,70 @@ fun RecentFileCard(
         item.coverImagePath?.let { File(it) } ?: placeholder
     }
 
-    Surface(
-        modifier = modifier.graphicsLayer { alpha = if (item.isAvailable) 1.0f else 0.8f },
-        shape = MaterialTheme.shapes.medium,
-        tonalElevation = if (isSelected) 8.dp else 2.dp,
-        shadowElevation = 4.dp,
-        border = if (isSelected) BorderStroke(2.dp, MaterialTheme.colorScheme.primary) else null
-    ) {
-        Column(
-            modifier = Modifier.combinedClickable(
-                onClick = onClick, onLongClick = onLongClick
+    androidx.compose.material3.ElevatedCard(
+        modifier = modifier
+            .graphicsLayer { alpha = if (item.isAvailable) 1.0f else 0.8f }
+            .then(
+                if (isSelected) Modifier.border(2.dp, MaterialTheme.colorScheme.primary, MaterialTheme.shapes.large)
+                else Modifier
+            )
+            .clip(MaterialTheme.shapes.large)
+            .combinedClickable(onClick = onClick, onLongClick = onLongClick),
+        shape = MaterialTheme.shapes.large,
+        colors = androidx.compose.material3.CardDefaults.elevatedCardColors(
+            containerColor = MaterialTheme.colorScheme.surfaceContainerHigh
+        ),
+        elevation = androidx.compose.material3.CardDefaults.elevatedCardElevation(
+            defaultElevation = if (isSelected) 6.dp else 2.dp
         )
     ) {
-            Box {
+        Column(modifier = Modifier.fillMaxWidth()) {
+            Box(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .aspectRatio(0.74f)
+            ) {
                 AsyncImage(
                     model = ImageRequest.Builder(context).data(imageModel).error(placeholder)
                         .fallback(placeholder).crossfade(true).build(),
                     contentDescription = item.displayName,
                     contentScale = ContentScale.Crop,
-                    modifier = Modifier.height(160.dp).fillMaxWidth(),
+                    modifier = Modifier.fillMaxSize()
                 )
 
-                if (item.sourceFolderUri != null) {
                 Box(
-                        modifier = Modifier.align(Alignment.TopEnd).padding(8.dp).background(
-                                color = MaterialTheme.colorScheme.secondaryContainer,
-                                shape = CircleShape
-                            ).padding(4.dp)
-                    ) {
-                        Icon(
-                            imageVector = Icons.Default.Folder,
-                            contentDescription = stringResource(R.string.local_folder),
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.onSecondaryContainer
+                    modifier = Modifier.fillMaxSize().background(
+                        androidx.compose.ui.graphics.Brush.verticalGradient(
+                            0f to Color.Black.copy(alpha = 0.15f),
+                            0.3f to Color.Transparent,
+                            0.6f to Color.Transparent,
+                            1f to Color.Black.copy(alpha = 0.5f)
+                        )
+                    )
                 )
-                    }
-                }
 
-                val isOpdsStream = item.uriString?.startsWith("opds-pse://") == true
-                if (isOpdsStream) {
-                    Box(
-                        modifier = Modifier.align(Alignment.TopEnd).padding(8.dp).background(
-                                color = MaterialTheme.colorScheme.tertiaryContainer,
-                                shape = CircleShape
-                            ).padding(4.dp)
-                    ) {
-                        Icon(
-                            imageVector = Icons.Default.Cloud,
-                            contentDescription = stringResource(R.string.opds_stream),
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.onTertiaryContainer
+                if (item.sourceFolderUri != null || item.isOpdsStream() || isPinned) {
+                    FileStatusBadges(
+                        item = item,
+                        isPinned = isPinned,
+                        overlay = true,
+                        modifier = Modifier
+                            .align(Alignment.TopStart)
+                            .padding(10.dp)
                     )
                 }
-                }
-
-                if (isPinned) {
-                    Box(
-                        modifier = Modifier.align(Alignment.TopStart).padding(8.dp).background(
-                                color = MaterialTheme.colorScheme.primaryContainer,
-                                shape = CircleShape
-                            ).padding(4.dp)
-                    ) {
-                        Icon(
-                            imageVector = Icons.Default.PushPin,
-                            contentDescription = stringResource(R.string.pinned),
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.onPrimaryContainer
-                        )
-                    }
-                }
 
                 if (!item.isAvailable) {
                     Box(
-                        modifier = Modifier
-                            .matchParentSize()
-                            .background(MaterialTheme.colorScheme.scrim.copy(alpha = 0.2f)),
+                        modifier = Modifier.matchParentSize()
+                            .background(MaterialTheme.colorScheme.scrim.copy(alpha = 0.5f)),
                         contentAlignment = Alignment.Center
                     ) {
                         if (isDownloading) {
                             CircularProgressIndicator(color = Color.White)
                         } else {
                             Icon(
-                                imageVector = Icons.Filled.Info,
+                                Icons.Filled.Info,
                                 contentDescription = stringResource(R.string.not_available_locally),
                                 modifier = Modifier.size(48.dp),
                                 tint = Color.White
@@ -846,39 +838,131 @@ fun RecentFileCard(
                         }
                     }
                 }
+
+                if (isSelected) {
                     Box(
-                    modifier = Modifier.align(Alignment.BottomEnd).padding(8.dp)
+                        modifier = Modifier.matchParentSize()
+                            .background(MaterialTheme.colorScheme.primary.copy(alpha = 0.2f)),
+                        contentAlignment = Alignment.Center
                     ) {
+                        Icon(
+                            Icons.Default.Check,
+                            contentDescription = "Selected",
+                            modifier = Modifier.size(48.dp)
+                                .background(MaterialTheme.colorScheme.primary, CircleShape)
+                                .padding(8.dp),
+                            tint = MaterialTheme.colorScheme.onPrimary
+                        )
+                    }
+                }
+
+                Box(modifier = Modifier.align(Alignment.BottomEnd).padding(8.dp)) {
                     FileTypeBadge(type = item.type, overlay = true)
                 }
+
+                progressPercent?.let { percent ->
+                    Surface(
+                        modifier = Modifier
+                            .align(Alignment.BottomStart)
+                            .padding(8.dp),
+                        shape = RoundedCornerShape(50),
+                        color = MaterialTheme.colorScheme.primaryContainer.copy(alpha = 0.95f),
+                        contentColor = MaterialTheme.colorScheme.onPrimaryContainer,
+                        border = androidx.compose.foundation.BorderStroke(
+                            1.dp,
+                            Color.White.copy(alpha = 0.14f)
+                        )
+                    ) {
+                        Text(
+                            text = "$percent%",
+                            style = MaterialTheme.typography.labelSmall,
+                            fontWeight = FontWeight.Bold,
+                            modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp)
+                        )
+                    }
+                }
             }
 
             Column(
                 modifier = Modifier
                     .fillMaxWidth()
-                    .height(80.dp)
-                    .padding(horizontal = 8.dp, vertical = 4.dp),
-                horizontalAlignment = Alignment.CenterHorizontally,
-                verticalArrangement = Arrangement.Center
+                    .background(MaterialTheme.colorScheme.surfaceContainerLow)
+                    .padding(horizontal = 14.dp, vertical = 12.dp),
+                horizontalAlignment = Alignment.Start
             ) {
                 Text(
-                    text = item.customName ?: item.title?.takeIf { it.isNotBlank() } ?: item.displayName,
-                    style = MaterialTheme.typography.bodyMedium.copy(fontWeight = FontWeight.SemiBold),
+                    text = item.cardTitle(),
+                    style = MaterialTheme.typography.titleSmall,
+                    fontWeight = FontWeight.SemiBold,
                     maxLines = 2,
+                    minLines = 2,
                     overflow = TextOverflow.Ellipsis,
-                    textAlign = TextAlign.Center,
-                    modifier = Modifier.weight(1f)
+                    modifier = Modifier.fillMaxWidth(),
+                    lineHeight = 20.sp
                 )
 
-                Box(
-                    modifier = Modifier.height(20.dp), contentAlignment = Alignment.Center
-                ) {
-                    item.progressPercentage?.let { progress ->
+                Spacer(modifier = Modifier.height(4.dp))
+
                 Text(
-                            text = stringResource(R.string.progress_complete, progress.toInt()),
+                    text = authorText,
                     style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.primary
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    maxLines = 1,
+                    minLines = 1,
+                    overflow = TextOverflow.Ellipsis,
+                    modifier = Modifier.fillMaxWidth()
                 )
+
+                if (!item.isAvailable) {
+                    Spacer(modifier = Modifier.height(12.dp))
+
+                    Box(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .height(28.dp),
+                        contentAlignment = Alignment.CenterStart
+                    ) {
+                        Surface(
+                            shape = RoundedCornerShape(50),
+                            color = if (isDownloading) {
+                                MaterialTheme.colorScheme.primaryContainer
+                            } else {
+                                MaterialTheme.colorScheme.errorContainer
+                            },
+                            contentColor = if (isDownloading) {
+                                MaterialTheme.colorScheme.onPrimaryContainer
+                            } else {
+                                MaterialTheme.colorScheme.onErrorContainer
+                            }
+                        ) {
+                            Row(
+                                modifier = Modifier.padding(horizontal = 10.dp, vertical = 6.dp),
+                                verticalAlignment = Alignment.CenterVertically,
+                                horizontalArrangement = Arrangement.spacedBy(6.dp)
+                            ) {
+                                if (isDownloading) {
+                                    CircularProgressIndicator(
+                                        modifier = Modifier.size(14.dp),
+                                        strokeWidth = 2.dp
+                                    )
+                                } else {
+                                    Icon(
+                                        Icons.Filled.Info,
+                                        contentDescription = stringResource(R.string.not_available_locally),
+                                        modifier = Modifier.size(14.dp)
+                                    )
+                                }
+                                Text(
+                                    text = if (isDownloading) {
+                                        stringResource(R.string.status_downloading)
+                                    } else {
+                                        stringResource(R.string.not_available_locally)
+                                    },
+                                    style = MaterialTheme.typography.labelSmall,
+                                    fontWeight = FontWeight.Medium
+                                )
+                            }
+                        }
                     }
                 }
             }
@@ -902,7 +986,9 @@ fun DefaultTopAppBar(
     onTabsToggle: (Boolean) -> Unit,
     onExternalFileBehaviorClick: () -> Unit,
     onStrictFilterToggleClick: () -> Unit,
-    onAppThemeClick: () -> Unit
+    onAppThemeClick: () -> Unit,
+    onTestPanelDetectionClick: () -> Unit,
+    onLanguageClick: () -> Unit
 ) {
     var showOptionsMenu by remember { mutableStateOf(false) }
     var showLimitMenu by remember { mutableStateOf(false) }
@@ -985,6 +1071,13 @@ fun DefaultTopAppBar(
                     }
                 })
 
+                HorizontalDivider()
+
+                DropdownMenuItem(text = { Text("Language") }, onClick = {
+                    onLanguageClick()
+                    showOptionsMenu = false
+                })
+
                 HorizontalDivider()
                 DropdownMenuItem(text = { Text(stringResource(R.string.options_clear_book_cache)) }, onClick = {
                     onClearCache()
@@ -995,6 +1088,14 @@ fun DefaultTopAppBar(
                     showOptionsMenu = false
                 })
 
+                if (BuildConfig.DEBUG) {
+                    HorizontalDivider()
+                    DropdownMenuItem(text = { Text("Test Panel ML Detection") }, onClick = {
+                        onTestPanelDetectionClick()
+                        showOptionsMenu = false
+                    })
+                }
+
                 if (BuildConfig.DEBUG && BuildConfig.FLAVOR != "oss") {
                     HorizontalDivider()
                     DropdownMenuItem(text = { Text(stringResource(R.string.debug_show_device_management)) }, onClick = {
@@ -1760,6 +1861,7 @@ fun ThemeSwatch(
     }
 }
 
+@SuppressLint("UnrememberedMutableState")
 @Composable
 fun CreateAppThemeDialog(
     initialColor: Color = Color(0xFF6750A4),
@@ -1916,3 +2018,46 @@ fun CreateAppThemeDialog(
         }
     }
 }
+
+@Composable
+fun LanguageSelectionDialog(onDismiss: () -> Unit) {
+    val currentLocales = AppCompatDelegate.getApplicationLocales()
+    val currentTag = if (!currentLocales.isEmpty) currentLocales.get(0)?.language ?: "en" else "en"
+
+    val languages = listOf(
+        "en" to "English (Default)",
+        "ar" to "العربية (Arabic)",
+        "de" to "Deutsch (German)",
+        "tr" to "Türkçe (Turkish)"
+    )
+
+    AlertDialog(
+        onDismissRequest = onDismiss,
+        title = { Text("Language") },
+        text = {
+            Column {
+                languages.forEach { (tag, name) ->
+                    Row(
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .clickable {
+                                AppCompatDelegate.setApplicationLocales(
+                                    LocaleListCompat.forLanguageTags(tag)
+                                )
+                                onDismiss()
+                            }
+                            .padding(vertical = 12.dp),
+                        verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        RadioButton(selected = currentTag == tag, onClick = null)
+                        Spacer(modifier = Modifier.width(16.dp))
+                        Text(name)
+                    }
+                }
+            }
+        },
+        confirmButton = {
+            TextButton(onClick = onDismiss) { Text(stringResource(R.string.action_cancel)) }
+        }
+    )
+}

app/src/main/java/com/aryan/reader/LibraryScreen.kt

@@ -22,28 +22,17 @@
 
 package com.aryan.reader
 
+import android.annotation.SuppressLint
 import android.net.Uri
 import androidx.activity.compose.BackHandler
 import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
+import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.combinedClickable
-import androidx.compose.material.icons.filled.PushPin
-import androidx.compose.material.icons.filled.FilterList
-import androidx.compose.material3.ModalBottomSheet
-import androidx.compose.material3.rememberModalBottomSheetState
-import com.aryan.reader.opds.OpdsViewModel
-import com.aryan.reader.opds.OpdsEntry
-import com.aryan.reader.opds.OpdsCatalog
-import org.jsoup.Jsoup
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.FilterChip
-import androidx.compose.material3.AssistChip
 import androidx.compose.foundation.horizontalScroll
-import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -52,6 +41,8 @@ import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.aspectRatio
+import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
@@ -67,6 +58,9 @@ import androidx.compose.foundation.lazy.itemsIndexed
 import androidx.compose.foundation.pager.HorizontalPager
 import androidx.compose.foundation.pager.PagerState
 import androidx.compose.foundation.pager.rememberPagerState
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
@@ -74,24 +68,28 @@ import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.ArrowDropDown
 import androidx.compose.material.icons.filled.Check
 import androidx.compose.material.icons.filled.Close
-import androidx.compose.material.icons.filled.Cloud
 import androidx.compose.material.icons.filled.Delete
 import androidx.compose.material.icons.filled.Edit
+import androidx.compose.material.icons.filled.FilterList
 import androidx.compose.material.icons.filled.Folder
 import androidx.compose.material.icons.filled.FolderSpecial
 import androidx.compose.material.icons.filled.Info
 import androidx.compose.material.icons.filled.MoreVert
 import androidx.compose.material.icons.filled.Search
 import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.AssistChip
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.DropdownMenu
 import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.ExtendedFloatingActionButton
 import androidx.compose.material3.FilledTonalButton
+import androidx.compose.material3.FilterChip
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Surface
@@ -100,6 +98,7 @@ import androidx.compose.material3.TabRow
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
 import androidx.compose.material3.TextFieldDefaults
+import androidx.compose.material3.rememberModalBottomSheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -133,9 +132,13 @@ import coil.compose.AsyncImage
 import coil.request.ImageRequest
 import com.aryan.reader.data.RecentFileItem
 import com.aryan.reader.opds.OpdsAcquisition
+import com.aryan.reader.opds.OpdsCatalog
+import com.aryan.reader.opds.OpdsEntry
+import com.aryan.reader.opds.OpdsViewModel
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import org.jsoup.Jsoup
 import timber.log.Timber
 import java.io.File
 import java.text.SimpleDateFormat
@@ -147,6 +150,7 @@ private fun getBookCountString(count: Int): String {
     return pluralStringResource(id = R.plurals.book_count, count, count)
 }
 
+@SuppressLint("LocalContextGetResourceValueCall")
 @Composable
 fun LibraryScreen(
     viewModel: MainViewModel,
@@ -605,6 +609,7 @@ fun LibraryScreenContent(
                         Row(
                             modifier = Modifier
                                 .fillMaxWidth()
+                                .statusBarsPadding()
                                 .height(64.dp),
                             verticalAlignment = Alignment.CenterVertically
                         ) {
@@ -918,7 +923,7 @@ private fun ShelfDetailScreen(
     var showMoreMenu by remember { mutableStateOf(false) }
 
     Scaffold(
-        modifier = Modifier.statusBarsPadding(),
+        modifier = Modifier,
         topBar = {
             if (isContextualModeActive) {
                 ContextualTopAppBar(
@@ -1071,7 +1076,7 @@ private fun AddBooksModeScreen(
     var showSourceMenu by remember { mutableStateOf(false) }
 
     Scaffold(
-        modifier = Modifier.statusBarsPadding(),
+        modifier = Modifier,
         topBar = {
             CustomTopAppBar(
                 title = { Text(stringResource(R.string.add_to_shelf, shelfName)) },
@@ -1256,13 +1261,21 @@ private fun ShelfListItem(
     onItemClick: () -> Unit,
     onItemLongClick: () -> Unit,
 ) {
-    Surface(
-        shape = MaterialTheme.shapes.medium,
-        tonalElevation = if (isSelected) 8.dp else 2.dp,
-        shadowElevation = 4.dp,
-        border = if (isSelected) BorderStroke(2.dp, MaterialTheme.colorScheme.primary) else null,
+    androidx.compose.material3.ElevatedCard(
+        shape = MaterialTheme.shapes.large,
+        colors = androidx.compose.material3.CardDefaults.elevatedCardColors(
+            containerColor = MaterialTheme.colorScheme.surfaceContainerLow
+        ),
+        elevation = androidx.compose.material3.CardDefaults.elevatedCardElevation(
+            defaultElevation = if (isSelected) 8.dp else 2.dp
+        ),
         modifier = Modifier
             .fillMaxWidth()
+            .then(
+                if (isSelected) Modifier.border(2.dp, MaterialTheme.colorScheme.primary, MaterialTheme.shapes.large)
+                else Modifier
+            )
+            .clip(MaterialTheme.shapes.large)
             .combinedClickable(
                 onClick = onItemClick,
                 onLongClick = {
@@ -1318,22 +1331,41 @@ private fun LibraryListItem(
         item.coverImagePath?.let { File(it) } ?: placeholder
     }
 
-    Surface(
-        shape = MaterialTheme.shapes.medium,
-        tonalElevation = if (isSelected) 8.dp else 2.dp,
-        shadowElevation = 4.dp,
-        border = if (isSelected) BorderStroke(2.dp, MaterialTheme.colorScheme.primary) else null,
+    androidx.compose.material3.ElevatedCard(
+        shape = MaterialTheme.shapes.large,
+        colors = androidx.compose.material3.CardDefaults.elevatedCardColors(
+            containerColor = MaterialTheme.colorScheme.surfaceContainerLow
+        ),
+        elevation = androidx.compose.material3.CardDefaults.elevatedCardElevation(
+            defaultElevation = if (isSelected) 6.dp else 2.dp
+        ),
         modifier = Modifier
             .fillMaxWidth()
             .graphicsLayer { alpha = if (item.isAvailable) 1.0f else 0.8f }
+            .then(
+                if (isSelected) Modifier.border(2.dp, MaterialTheme.colorScheme.primary, MaterialTheme.shapes.large)
+                else Modifier
+            )
+            .clip(MaterialTheme.shapes.large)
             .combinedClickable(
                 onClick = onItemClick,
                 onLongClick = onItemLongClick
             )
     ) {
         Row(
-            modifier = Modifier.padding(12.dp),
-            verticalAlignment = Alignment.Top
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 14.dp, vertical = 12.dp)
+                .height(132.dp),
+            verticalAlignment = Alignment.Top,
+            horizontalArrangement = Arrangement.spacedBy(16.dp)
+        ) {
+            Box(
+                modifier = Modifier
+                    .fillMaxHeight()
+                    .aspectRatio(0.7f)
+                    .clip(MaterialTheme.shapes.medium)
+                    .border(0.5.dp, MaterialTheme.colorScheme.outlineVariant.copy(alpha = 0.5f), MaterialTheme.shapes.medium)
             ) {
                 AsyncImage(
                     model = ImageRequest.Builder(context)
@@ -1344,100 +1376,128 @@ private fun LibraryListItem(
                         .build(),
                     contentDescription = item.displayName,
                     contentScale = ContentScale.Crop,
+                    modifier = Modifier.fillMaxSize()
+                )
+
+                if (isSelected) {
+                    Box(
+                        modifier = Modifier.matchParentSize().background(MaterialTheme.colorScheme.primary.copy(alpha = 0.2f)),
+                        contentAlignment = Alignment.Center
+                    ) {
+                        Icon(Icons.Default.Check, contentDescription = "Selected", modifier = Modifier.size(36.dp).background(MaterialTheme.colorScheme.primary, CircleShape).padding(6.dp), tint = MaterialTheme.colorScheme.onPrimary)
+                    }
+                }
+            }
+
+            Column(
                 modifier = Modifier
-                    .size(width = 70.dp, height = 100.dp)
-                    .clip(MaterialTheme.shapes.small)
-            )
-
-            Spacer(modifier = Modifier.width(16.dp))
-
+                    .weight(1f)
+                    .fillMaxHeight()
+            ) {
+                Row(
+                    verticalAlignment = Alignment.Top,
+                    horizontalArrangement = Arrangement.spacedBy(12.dp)
+                ) {
                     Column(modifier = Modifier.weight(1f)) {
-                Row(verticalAlignment = Alignment.CenterVertically) {
-                    if (item.sourceFolderUri != null) {
-                        Icon(
-                            imageVector = Icons.Default.Folder,
-                            contentDescription = null,
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.secondary
-                        )
-                        Spacer(modifier = Modifier.width(4.dp))
-                    }
-                    val isOpdsStream = item.uriString?.startsWith("opds-pse://") == true
-                    if (isOpdsStream) {
-                        Icon(
-                            imageVector = Icons.Default.Cloud,
-                            contentDescription = "OPDS Stream",
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.tertiary
-                        )
-                        Spacer(modifier = Modifier.width(4.dp))
-                    }
-
-                    if (isPinned) {
-                        Icon(
-                            imageVector = Icons.Default.PushPin,
-                            contentDescription = "Pinned",
-                            modifier = Modifier.size(16.dp),
-                            tint = MaterialTheme.colorScheme.primary
-                        )
-                        Spacer(modifier = Modifier.width(4.dp))
-                    }
-
                         Text(
-                        text = item.customName ?: item.title ?: item.displayName,
-                        style = MaterialTheme.typography.titleMedium,
-                        fontWeight = FontWeight.Bold,
+                            text = item.cardTitle(),
+                            style = MaterialTheme.typography.titleSmall,
+                            fontWeight = FontWeight.SemiBold,
                             maxLines = 2,
+                            minLines = 2,
                             overflow = TextOverflow.Ellipsis,
-                        modifier = Modifier.weight(1f, fill = false)
+                            lineHeight = 20.sp
                         )
-                    if (!item.isAvailable) {
-                        Spacer(modifier = Modifier.width(8.dp))
-                        if (isDownloading) {
-                            CircularProgressIndicator(modifier = Modifier.size(18.dp))
-                        } else {
-                            Icon(
-                                imageVector = Icons.Filled.Info,
-                                contentDescription = "Not available locally",
-                                modifier = Modifier.size(18.dp),
-                                tint = MaterialTheme.colorScheme.onSurfaceVariant
-                            )
-                        }
-                    }
-                }
-                item.author?.takeIf { it.isNotBlank() }?.let {
                         Spacer(modifier = Modifier.height(4.dp))
                         Text(
-                        text = it,
-                        style = MaterialTheme.typography.bodyMedium,
+                            text = item.cardAuthor(),
+                            style = MaterialTheme.typography.bodySmall,
                             maxLines = 1,
+                            minLines = 1,
                             overflow = TextOverflow.Ellipsis,
                             color = MaterialTheme.colorScheme.onSurfaceVariant
                         )
                     }
 
-                Spacer(modifier = Modifier.height(8.dp))
-                Row(verticalAlignment = Alignment.CenterVertically) {
+                    if (item.sourceFolderUri != null || item.isOpdsStream() || isPinned) {
+                        FileStatusBadges(
+                            item = item,
+                            isPinned = isPinned
+                        )
+                    }
+                }
+
+                Spacer(modifier = Modifier.height(10.dp))
+
+                Row(
+                    modifier = Modifier.fillMaxWidth(),
+                    verticalAlignment = Alignment.CenterVertically,
+                    horizontalArrangement = Arrangement.spacedBy(10.dp)
+                ) {
                     FileTypeBadge(type = item.type, overlay = false)
 
-                    item.progressPercentage?.let {
-                        Spacer(modifier = Modifier.width(8.dp))
-                        Text(
-                            text = "•",
-                            style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.onSurfaceVariant
+                    Box(
+                        modifier = Modifier
+                            .weight(1f)
+                            .height(28.dp),
+                        contentAlignment = Alignment.CenterStart
+                    ) {
+                        if (!item.isAvailable) {
+                            Surface(
+                                shape = RoundedCornerShape(50),
+                                color = if (isDownloading) {
+                                    MaterialTheme.colorScheme.primaryContainer
+                                } else {
+                                    MaterialTheme.colorScheme.errorContainer
+                                },
+                                contentColor = if (isDownloading) {
+                                    MaterialTheme.colorScheme.onPrimaryContainer
+                                } else {
+                                    MaterialTheme.colorScheme.onErrorContainer
+                                }
+                            ) {
+                                Row(
+                                    modifier = Modifier.padding(horizontal = 10.dp, vertical = 6.dp),
+                                    verticalAlignment = Alignment.CenterVertically,
+                                    horizontalArrangement = Arrangement.spacedBy(6.dp)
+                                ) {
+                                    if (isDownloading) {
+                                        CircularProgressIndicator(
+                                            modifier = Modifier.size(14.dp),
+                                            strokeWidth = 2.dp
                                         )
-                        Spacer(modifier = Modifier.width(8.dp))
+                                    } else {
+                                        Icon(
+                                            Icons.Filled.Info,
+                                            contentDescription = stringResource(R.string.not_available_locally),
+                                            modifier = Modifier.size(14.dp)
+                                        )
+                                    }
                                     Text(
-                            text = "${it.toInt()}% complete",
-                            style = MaterialTheme.typography.bodySmall,
-                            color = MaterialTheme.colorScheme.primary
+                                        text = if (isDownloading) {
+                                            stringResource(R.string.status_downloading)
+                                        } else {
+                                            stringResource(R.string.not_available_locally)
+                                        },
+                                        style = MaterialTheme.typography.labelSmall,
+                                        fontWeight = FontWeight.Medium
                                     )
                                 }
                             }
                         }
                     }
                 }
+
+                Spacer(modifier = Modifier.weight(1f))
+
+                ReadingProgressSection(
+                    progressPercentage = item.progressPercentage,
+                    compact = true,
+                    modifier = Modifier.fillMaxWidth()
+                )
+            }
+        }
+    }
 }
 
 @Composable

app/src/main/java/com/aryan/reader/MainActivity.kt

@@ -23,7 +23,7 @@ import android.content.Intent
 import android.os.Build
 import android.os.Bundle
 import android.webkit.WebView
-import androidx.activity.ComponentActivity
+import androidx.appcompat.app.AppCompatActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.activity.result.contract.ActivityResultContracts
@@ -43,9 +43,10 @@ import kotlinx.coroutines.launch
 import timber.log.Timber
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.runtime.getValue
+import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
 
-class MainActivity : ComponentActivity() {
+class MainActivity : AppCompatActivity() {
 
     private val viewModel: MainViewModel by viewModels()
     private lateinit var platformFeaturesRepository: PlatformFeaturesRepository
@@ -61,6 +62,7 @@ class MainActivity : ComponentActivity() {
     @RequiresApi(Build.VERSION_CODES.VANILLA_ICE_CREAM)
     @OptIn(ExperimentalMaterial3WindowSizeClassApi::class)
     override fun onCreate(savedInstanceState: Bundle?) {
+        installSplashScreen()
         enableEdgeToEdge()
         super.onCreate(savedInstanceState)
 

app/src/main/java/com/aryan/reader/MainScreen.kt

@@ -91,6 +91,7 @@ fun MainScreen(
         }
 
         Scaffold(
+            contentWindowInsets = androidx.compose.foundation.layout.WindowInsets(0, 0, 0, 0),
             bottomBar = {
                 NavigationBar {
                     bottomBarItems.forEachIndexed { index, screen ->

app/src/main/java/com/aryan/reader/MainViewModel.kt

@@ -28,6 +28,7 @@ import android.content.Context
 import android.content.Intent
 import android.content.SharedPreferences
 import android.database.Cursor
+import android.graphics.Bitmap
 import android.net.Uri
 import android.os.Build
 import android.provider.DocumentsContract
@@ -115,7 +116,9 @@ import java.util.concurrent.CancellationException
 import java.util.concurrent.TimeUnit
 import androidx.core.graphics.createBitmap
 import io.legere.pdfiumandroid.PdfiumCore
+import kotlinx.coroutines.asCoroutineDispatcher
 import kotlinx.coroutines.flow.distinctUntilChanged
+import java.util.concurrent.Executors.newSingleThreadExecutor
 
 private const val KEY_RENDER_MODE = "render_mode"
 private const val KEY_FOLDER_SYNC_ENABLED = "folder_sync_enabled"
@@ -276,15 +279,21 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
     private val appContext: Context = application.applicationContext
     private val authRepository = AuthRepository(appContext)
     private val recentFilesRepository = RecentFilesRepository(appContext)
-    private val pdfTextRepository = PdfTextRepository(appContext)
 
-    private val bookCacheDao = BookCacheDatabase.getDatabase(application).bookCacheDao()
-    private val epubParser = EpubParser(appContext)
-    private val mobiParser = MobiParser(appContext)
-    private val fb2Parser = com.aryan.reader.epub.Fb2Parser(appContext)
-    private val odtParser = com.aryan.reader.epub.OdtParser(appContext)
-    private val singleFileImporter = SingleFileImporter(appContext)
-    private val bookImporter = BookImporter(appContext)
+    private val pdfTextRepository by lazy { PdfTextRepository(appContext) }
+    private val bookCacheDao by lazy { BookCacheDatabase.getDatabase(application).bookCacheDao() }
+    private val epubParser by lazy { EpubParser(appContext) }
+    private val mobiParser by lazy { MobiParser(appContext) }
+    private val fb2Parser by lazy { com.aryan.reader.epub.Fb2Parser(appContext) }
+    private val odtParser by lazy { com.aryan.reader.epub.OdtParser(appContext) }
+    private val singleFileImporter by lazy { SingleFileImporter(appContext) }
+    private val bookImporter by lazy { BookImporter(appContext) }
+    private val pageLayoutRepository by lazy { PageLayoutRepository(appContext) }
+    private val pdfRichTextRepository by lazy { com.aryan.reader.pdf.PdfRichTextRepository(appContext) }
+    private val pdfTextBoxRepository by lazy { PdfTextBoxRepository(appContext) }
+    private val pdfHighlightRepository by lazy { PdfHighlightRepository(appContext) }
+    private val pdfAnnotationRepository by lazy { PdfAnnotationRepository(appContext) }
+
     private val prefs: SharedPreferences =
         application.getSharedPreferences("reader_user_prefs", Context.MODE_PRIVATE)
     private val firestoreRepository = FirestoreRepository()
@@ -301,16 +310,33 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
     private val feedbackRepository = FeedbackRepository(appContext)
     private var feedbackListener: Any? = null
     private val importMutex = Mutex()
-    private val pageLayoutRepository = PageLayoutRepository(appContext)
-    private val pdfRichTextRepository = com.aryan.reader.pdf.PdfRichTextRepository(appContext)
-    private val pdfTextBoxRepository = PdfTextBoxRepository(appContext)
-    private val pdfHighlightRepository = PdfHighlightRepository(appContext)
     private val _navigationEvent = Channel<NavigationEvent>(Channel.BUFFERED)
     @Suppress("unused")
     val navigationEvent = _navigationEvent.receiveAsFlow()
     private var pendingSwitchDeferred: CompletableDeferred<Boolean>? = null
     private var externalOpenedBookId: String? = null
 
+    private var panelDetector: com.aryan.reader.ml.IPanelDetector? = null
+
+    private val mlDispatcher = newSingleThreadExecutor().asCoroutineDispatcher()
+
+    private fun getOrInitDetector(context: Context): com.aryan.reader.ml.IPanelDetector? {
+        if (panelDetector == null && BuildConfig.DEBUG) {
+            val modelFile = File(context.getExternalFilesDir(null), "best_float16.tflite")
+            if (modelFile.exists()) {
+                try {
+                    val clazz = Class.forName("com.aryan.reader.ml.ComicPanelDetector")
+                    panelDetector = clazz.getConstructor(File::class.java).newInstance(modelFile) as com.aryan.reader.ml.IPanelDetector
+                } catch (e: Exception) {
+                    Timber.e(e, "Failed to instantiate ComicPanelDetector via reflection")
+                }
+            } else {
+                Timber.e("Model file best_float16.tflite not found in external files dir")
+            }
+        }
+        return panelDetector
+    }
+
     data class PageModificationResult(
         val layout: List<VirtualPage>,
         val annotations: Map<Int, List<PdfAnnotation>>,
@@ -502,7 +528,7 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
     }.stateIn(
         scope = viewModelScope,
         started = SharingStarted.WhileSubscribed(5000),
-        initialValue = ReaderScreenState()
+        initialValue = _internalState.value
     )
 
     fun setTabsEnabled(enabled: Boolean) {
@@ -796,7 +822,9 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
 
     init {
         Timber.d("ViewModel instance created.")
+        viewModelScope.launch(Dispatchers.IO) {
             PDFBoxResourceLoader.init(getApplication())
+        }
         val currentOpenCount = prefs.getInt(KEY_APP_OPEN_COUNT, 0)
         prefs.edit { putInt(KEY_APP_OPEN_COUNT, currentOpenCount + 1) }
 
@@ -1181,8 +1209,6 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
         }
     }
 
-    private val pdfAnnotationRepository = PdfAnnotationRepository(appContext)
-
     private fun getFastFileId(context: Context, uri: Uri): String {
         var result = uri.toString()
         try {
@@ -4410,6 +4436,8 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
         super.onCleared()
         prefs.unregisterOnSharedPreferenceChangeListener(prefsListener)
         firestoreRepository.removeListener(feedbackListener)
+        panelDetector?.close()
+        panelDetector = null
         Timber.d("ViewModel instance cleared (onCleared).")
     }
 
@@ -4627,6 +4655,104 @@ open class MainViewModel(application: Application) : AndroidViewModel(applicatio
         return authRepository.getIdToken()
     }
 
+    fun testPanelDetection(context: Context) {
+        viewModelScope.launch(mlDispatcher) {
+            try {
+                val modelFile = File(context.getExternalFilesDir(null), "best_float16.tflite")
+                if (!modelFile.exists()) {
+                    withContext(Dispatchers.Main) { showBanner("Model not found", isError = true) }
+                    return@launch
+                }
+
+                val cbzItem = uiState.value.contextualActionItems.firstOrNull { it.type == FileType.CBZ }
+                    ?: uiState.value.allRecentFiles.firstOrNull { it.type == FileType.CBZ }
+
+                if (cbzItem == null) {
+                    withContext(Dispatchers.Main) { showBanner("No CBZ found in Library.", isError = true) }
+                    return@launch
+                }
+
+                val uri = cbzItem.getUri() ?: return@launch
+                Timber.d("BATCH TEST START: ${cbzItem.displayName}")
+
+                var cacheFile: File? = null
+                try {
+                    val detector = getOrInitDetector(context) ?: run {
+                        withContext(Dispatchers.Main) { showBanner("Model could not be loaded", isError = true) }
+                        return@launch
+                    }
+                    cacheFile = File(context.cacheDir, "temp_test_batch.cbz")
+                    context.contentResolver.openInputStream(uri)?.use { input ->
+                        cacheFile.outputStream().use { output -> input.copyTo(output) }
+                    }
+
+                    // 1. Initialize Model Once
+                    val initStartTime = System.currentTimeMillis()
+                    val initDuration = System.currentTimeMillis() - initStartTime
+                    Timber.d(">>> [BATCH] Model Initialization: ${initDuration}ms")
+
+                    val archiveDoc = com.aryan.reader.pdf.ArchiveDocumentWrapper(cacheFile)
+                    val totalPages = archiveDoc.getPageCount()
+
+                    val startIndex = 3
+                    val numPagesToTest = 10
+                    val endIndex = minOf(startIndex + numPagesToTest - 1, totalPages - 1)
+
+                    val resultsLog = StringBuilder()
+                    resultsLog.append("Batch Results:\n")
+
+                    // 2. Loop through pages
+                    for (i in startIndex..endIndex) {
+                        val page = archiveDoc.openPage(i)
+                        if (page != null) {
+                            val w = page.getPageWidthPoint()
+                            val h = page.getPageHeightPoint()
+                            if (w > 0 && h > 0) {
+                                val bitmap = androidx.core.graphics.createBitmap(w, h)
+                                page.renderPageBitmap(bitmap, 0, 0, w, h, false)
+
+                                // Measure precise inference time
+                                val pageStartTime = System.currentTimeMillis()
+                                val panels = detector.detectPanels(bitmap)
+                                val pageDuration = System.currentTimeMillis() - pageStartTime
+
+                                val logLine = "Page $i: ${pageDuration}ms (Found ${panels.size} panels)"
+                                Timber.d(">>>[BATCH] $logLine")
+                                resultsLog.append("$logLine\n")
+                                bitmap.recycle()
+                                delay(20)
+                            }
+                            page.close()
+                        }
+                    }
+                    archiveDoc.close()
+
+                    withContext(Dispatchers.Main) {
+                        Timber.i(resultsLog.toString())
+                        showBanner("Batch test complete! Check logs for page-by-page timings.")
+                    }
+
+                } finally {
+                    cacheFile?.delete()
+                }
+            } catch (e: Exception) {
+                Timber.e(e, "Batch test failed")
+            }
+        }
+    }
+
+    suspend fun detectComicPanels(bitmap: Bitmap, context: Context): List<android.graphics.RectF> {
+        return withContext(mlDispatcher) {
+            try {
+                val detector = getOrInitDetector(context)
+                detector?.detectPanels(bitmap) ?: emptyList()
+            } catch (e: Exception) {
+                Timber.e(e, "Error during panel detection")
+                emptyList()
+            }
+        }
+    }
+
     companion object {
         private const val KEY_SORT_ORDER = "sort_order"
         internal const val KEY_SHELVES = "shelf_names"

app/src/main/java/com/aryan/reader/SharedComposables.kt

@@ -28,10 +28,12 @@ import androidx.activity.compose.rememberLauncherForActivityResult
 import androidx.activity.result.contract.ActivityResultContracts
 import androidx.browser.customtabs.CustomTabsIntent
 import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.ui.graphics.Color
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
 import androidx.compose.animation.slideInVertically
 import androidx.compose.animation.slideOutVertically
+import androidx.compose.foundation.BorderStroke
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -55,8 +57,10 @@ import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
 import androidx.compose.material.icons.automirrored.filled.ArrowForward
 import androidx.compose.material.icons.filled.Add
+import androidx.compose.material.icons.filled.Cloud
 import androidx.compose.material.icons.filled.ContentCopy
 import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.icons.filled.Folder
 import androidx.compose.material.icons.filled.Info
 import androidx.compose.material.icons.filled.PushPin
 import androidx.compose.material.icons.filled.SelectAll
@@ -69,6 +73,7 @@ import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.LocalTextStyle
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
@@ -85,6 +90,7 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.drawWithContent
+import androidx.compose.ui.graphics.luminance
 import androidx.compose.ui.platform.LocalClipboardManager
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalUriHandler
@@ -100,6 +106,7 @@ import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.text.style.TextDecoration
 import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.window.Dialog
@@ -111,6 +118,7 @@ import java.util.Date
 import java.util.Locale
 import kotlin.math.log10
 import kotlin.math.pow
+import kotlin.math.roundToInt
 
 internal const val PRIVACY_POLICY_URL = "https://aryan-raj3112.github.io/reader-policy/privacy-policy.html"
 internal const val TERMS_URL = "https://aryan-raj3112.github.io/reader-policy/terms-and-conditions.html"
@@ -254,15 +262,15 @@ fun CustomTopAppBar(
     actions: @Composable RowScope.() -> Unit = {}
 ) {
     Surface(
-        modifier = modifier
-            .fillMaxWidth()
-            .height(56.dp),
+        modifier = modifier.fillMaxWidth(),
         color = MaterialTheme.colorScheme.surfaceVariant,
         shadowElevation = 2.dp
     ) {
         Row(
             modifier = Modifier
-                .fillMaxSize()
+                .fillMaxWidth()
+                .statusBarsPadding()
+                .height(56.dp)
                 .padding(horizontal = 4.dp),
             verticalAlignment = Alignment.CenterVertically
         ) {
@@ -874,20 +882,168 @@ fun AutoSizeText(
 
 @Composable
 fun FileTypeBadge(type: FileType, modifier: Modifier = Modifier, overlay: Boolean = false) {
-    val containerColor = if (overlay) androidx.compose.ui.graphics.Color.Black.copy(alpha = 0.6f) else MaterialTheme.colorScheme.secondaryContainer
-    val contentColor = if (overlay) androidx.compose.ui.graphics.Color.White else MaterialTheme.colorScheme.onSecondaryContainer
+    val containerColor = if (overlay) Color.Black.copy(alpha = 0.6f) else MaterialTheme.colorScheme.secondaryContainer
+    val contentColor = if (overlay) Color.White else MaterialTheme.colorScheme.onSecondaryContainer
 
     Surface(
         modifier = modifier,
-        shape = RoundedCornerShape(4.dp),
+        shape = RoundedCornerShape(50),
         color = containerColor,
-        contentColor = contentColor
+        contentColor = contentColor,
+        border = if (overlay) BorderStroke(1.dp, Color.White.copy(alpha = 0.3f)) else null
     ) {
         Text(
             text = type.name.uppercase(),
-            style = MaterialTheme.typography.labelSmall,
-            fontWeight = FontWeight.Bold,
-            modifier = Modifier.padding(horizontal = 6.dp, vertical = 2.dp)
+            style = MaterialTheme.typography.labelSmall.copy(letterSpacing = 1.sp),
+            fontWeight = FontWeight.ExtraBold,
+            modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp)
+        )
+    }
+}
+
+private const val UNKNOWN_AUTHOR_LABEL = "No author listed"
+
+fun RecentFileItem.cardTitle(): String {
+    return customName ?: title?.takeIf { it.isNotBlank() } ?: displayName
+}
+
+fun RecentFileItem.cardAuthor(): String {
+    return author
+        ?.takeIf { it.isNotBlank() && !it.equals("Unknown", ignoreCase = true) }
+        ?: UNKNOWN_AUTHOR_LABEL
+}
+
+fun RecentFileItem.progressPercentValue(): Int {
+    return (progressPercentage ?: 0f).coerceIn(0f, 100f).roundToInt()
+}
+
+fun RecentFileItem.progressFraction(): Float {
+    return progressPercentValue() / 100f
+}
+
+fun RecentFileItem.isOpdsStream(): Boolean {
+    return uriString?.startsWith("opds-pse://") == true
+}
+
+@Composable
+private fun statusBadgeColors(overlay: Boolean): Pair<Color, Color> {
+    val container = if (overlay) {
+        MaterialTheme.colorScheme.surfaceContainerHighest.copy(alpha = 0.92f)
+    } else {
+        MaterialTheme.colorScheme.surfaceContainerHighest
+    }
+    val content = if (overlay) {
+        MaterialTheme.colorScheme.onSurface
+    } else {
+        MaterialTheme.colorScheme.onSurfaceVariant
+    }
+    return container to content
+}
+
+@Composable
+fun StatusIconBadge(
+    icon: ImageVector,
+    contentDescription: String,
+    modifier: Modifier = Modifier,
+    overlay: Boolean = false,
+) {
+    val (containerColor, contentColor) = statusBadgeColors(overlay)
+
+    Surface(
+        modifier = modifier,
+        shape = RoundedCornerShape(12.dp),
+        color = containerColor,
+        contentColor = contentColor,
+        tonalElevation = if (overlay) 0.dp else 2.dp,
+        shadowElevation = if (overlay) 0.dp else 1.dp,
+        border = if (overlay) BorderStroke(1.dp, Color.White.copy(alpha = 0.12f)) else null
+    ) {
+        Icon(
+            imageVector = icon,
+            contentDescription = contentDescription,
+            modifier = Modifier.padding(6.dp).size(14.dp)
+        )
+    }
+}
+
+@Composable
+fun FileStatusBadges(
+    item: RecentFileItem,
+    isPinned: Boolean,
+    modifier: Modifier = Modifier,
+    overlay: Boolean = false,
+) {
+    Row(
+        modifier = modifier,
+        horizontalArrangement = Arrangement.spacedBy(6.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        if (item.sourceFolderUri != null) {
+            StatusIconBadge(
+                icon = Icons.Default.Folder,
+                contentDescription = stringResource(R.string.local_folder),
+                overlay = overlay
+            )
+        }
+        if (item.isOpdsStream()) {
+            StatusIconBadge(
+                icon = Icons.Default.Cloud,
+                contentDescription = stringResource(R.string.opds_stream),
+                overlay = overlay
+            )
+        }
+        if (isPinned) {
+            StatusIconBadge(
+                icon = Icons.Default.PushPin,
+                contentDescription = stringResource(R.string.pinned),
+                overlay = overlay
+            )
+        }
+    }
+}
+
+@Composable
+fun ReadingProgressSection(
+    progressPercentage: Float?,
+    modifier: Modifier = Modifier,
+    label: String? = null,
+    compact: Boolean = false,
+) {
+    val percent = (progressPercentage ?: 0f).coerceIn(0f, 100f).roundToInt()
+    val progress = percent / 100f
+
+    Column(modifier = modifier) {
+        Row(verticalAlignment = Alignment.CenterVertically) {
+            if (label != null) {
+                Text(
+                    text = label,
+                    style = if (compact) MaterialTheme.typography.labelSmall else MaterialTheme.typography.labelMedium,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant,
+                    maxLines = 1
+                )
+            }
+            Spacer(modifier = Modifier.weight(1f))
+            Surface(
+                shape = RoundedCornerShape(50),
+                color = MaterialTheme.colorScheme.primaryContainer,
+                contentColor = MaterialTheme.colorScheme.onPrimaryContainer
+            ) {
+                Text(
+                    text = "$percent%",
+                    style = if (compact) MaterialTheme.typography.labelSmall else MaterialTheme.typography.labelMedium,
+                    fontWeight = FontWeight.Bold,
+                    modifier = Modifier.padding(horizontal = 10.dp, vertical = 4.dp)
+                )
+            }
+        }
+        Spacer(modifier = Modifier.height(if (compact) 6.dp else 8.dp))
+        LinearProgressIndicator(
+            progress = { progress },
+            modifier = Modifier
+                .fillMaxWidth()
+                .height(if (compact) 5.dp else 6.dp),
+            color = MaterialTheme.colorScheme.primary,
+            trackColor = MaterialTheme.colorScheme.primaryContainer.copy(alpha = 0.4f)
         )
     }
 }

app/src/main/java/com/aryan/reader/epubreader/EpubReaderDrawer.kt

@@ -94,6 +94,7 @@ import com.aryan.reader.R
 import com.aryan.reader.RenderMode
 import com.aryan.reader.epub.EpubChapter
 import com.aryan.reader.epub.EpubTocEntry
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import timber.log.Timber
 
@@ -329,7 +330,8 @@ private fun ChaptersList(
         mutableStateOf(allParentIndices)
     }
 
-    val visibleItemInfo = remember(effectiveToc, expandedEntryIndices) {
+    val visibleItemInfo by remember(effectiveToc) {
+        derivedStateOf {
             val result = mutableListOf<Pair<Int, EpubTocEntry>>()
             val visibilityStack = BooleanArray(50) { false }
             visibilityStack[0] = true
@@ -353,6 +355,7 @@ private fun ChaptersList(
             }
             result
         }
+    }
 
     val coroutineScope = rememberCoroutineScope()
 
@@ -367,23 +370,29 @@ private fun ChaptersList(
             val targetEntry = activeTocEntry ?: return@launch
             val targetOriginalIndex = effectiveToc.indexOf(targetEntry)
             if (targetOriginalIndex != -1) {
-                // Ensure parents are expanded
                 var currentLevel = targetEntry.depth
                 val newExpanded = expandedEntryIndices.toMutableSet()
+
                 for (i in targetOriginalIndex downTo 0) {
                     val entry = effectiveToc[i]
                     if (entry.depth < currentLevel) {
                         newExpanded.add(i)
                         currentLevel = entry.depth
                     }
+                    if (currentLevel == 0) break
                 }
+
                 expandedEntryIndices = newExpanded
 
-                // Delay to allow visibility array to recompose
-                kotlinx.coroutines.delay(100)
-
                 val visibleIdx = visibleItemInfo.indexOfFirst { it.second == targetEntry }
+
                 if (visibleIdx != -1) {
+                    var attempts = 0
+                    while (listState.layoutInfo.totalItemsCount <= visibleIdx && attempts < 10) {
+                        delay(30)
+                        attempts++
+                    }
+
                     listState.animateScrollToItem(visibleIdx)
                 }
             }

app/src/main/java/com/aryan/reader/epubreader/EpubReaderScreen.kt

@@ -448,7 +448,7 @@ fun EpubReaderScreen(
 }
 
 @Suppress("ControlFlowWithEmptyBody")
-@SuppressLint("UnusedBoxWithConstraintsScope", "ObsoleteSdkInt")
+@SuppressLint("UnusedBoxWithConstraintsScope", "ObsoleteSdkInt", "LocalContextGetResourceValueCall")
 @androidx.annotation.OptIn(UnstableApi::class)
 @RequiresApi(Build.VERSION_CODES.VANILLA_ICE_CREAM)
 @OptIn(ExperimentalMaterial3Api::class)
@@ -481,6 +481,13 @@ fun EpubReaderHost(
     val activity = context as? Activity
     val scope = rememberCoroutineScope()
     var bannerMessage by remember { mutableStateOf<BannerMessage?>(null) }
+    DisposableEffect(window, view) {
+        onDispose {
+            window?.let {
+                WindowCompat.getInsetsController(it, view).show(WindowInsetsCompat.Type.systemBars())
+            }
+        }
+    }
     val focusManager = LocalFocusManager.current
     val searchFocusRequester = remember { FocusRequester() }
     val containerFocusRequester = remember { FocusRequester() }

app/src/main/java/com/aryan/reader/ml/IPanelDetector.kt

@@ -0,0 +1,9 @@
+package com.aryan.reader.ml
+
+import android.graphics.Bitmap
+import android.graphics.RectF
+
+interface IPanelDetector {
+    fun detectPanels(bitmap: Bitmap, confidenceThreshold: Float = 0.25f, iouThreshold: Float = 0.45f): List<RectF>
+    fun close()
+}

app/src/main/java/com/aryan/reader/paginatedreader/PaginatedReader.kt

@@ -1908,7 +1908,6 @@ internal fun PaginatedReaderContent(
                                     val down = event.changes.firstOrNull { it.pressed }
                                     if (down != null) {
                                         pageTurnTouchY = down.position.y
-                                        Timber.tag("PageTurnFixDiag").v("Touch Event: Y=${down.position.y} at OffsetFraction=${pagerState.currentPageOffsetFraction}")
                                     }
                                 }
                             }
@@ -3952,10 +3951,6 @@ private fun Modifier.realisticBookPage(
     isDarkTheme: Boolean,
     touchY: Float?
 ): Modifier = composed {
-    // Log composition frequency
-    SideEffect {
-        Timber.tag("PageTurnFixDiag").v("Page $pageIndex re-composed. Offset: ${pagerState.currentPageOffsetFraction}")
-    }
 
     val frontPath = remember { Path() }
     val backPath = remember { Path() }
@@ -3965,7 +3960,6 @@ private fun Modifier.realisticBookPage(
         .graphicsLayer {
             val pageOffset = (pageIndex - pagerState.currentPage) - pagerState.currentPageOffsetFraction
 
-            // Log layer property updates
             if (abs(pageOffset) > 0.001f && abs(pageOffset) < 0.999f) {
                 Timber.tag("PageTurnFixDiag").d("graphicsLayer: Page $pageIndex, Offset: $pageOffset")
             }
@@ -3994,7 +3988,14 @@ private fun Modifier.realisticBookPage(
                 val h = size.height
 
                 val startY = touchY ?: h
-                val centerDist = ((startY - h / 2f) / (h / 2f)).coerceIn(-1f, 1f)
+                val rawCenterDist = ((startY - h / 2f) / (h / 2f)).coerceIn(-1f, 1f)
+
+                val flattenFactor = if (progress > 0.75f) {
+                    ((progress - 0.75f) / 0.25f).coerceIn(0f, 1f)
+                } else {
+                    0f
+                }
+                val centerDist = rawCenterDist * (1f - flattenFactor)
 
                 val cornerY = if (centerDist >= 0) h else 0f
 

app/src/main/java/com/aryan/reader/pdf/AnnotationDock.kt

@@ -19,13 +19,23 @@
  */
 package com.aryan.reader.pdf
 
+import androidx.compose.animation.core.animateDpAsState
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.foundation.Canvas
 import androidx.compose.foundation.background
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.interaction.MutableInteractionSource
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.offset
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
@@ -35,19 +45,29 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.Redo
 import androidx.compose.material.icons.automirrored.filled.Undo
+import androidx.compose.material.icons.filled.Check
 import androidx.compose.material.icons.filled.Close
 import androidx.compose.material.icons.filled.DoNotTouch
+import androidx.compose.material.icons.filled.Star
 import androidx.compose.material.icons.filled.TouchApp
 import androidx.compose.material.icons.filled.Visibility
 import androidx.compose.material.icons.filled.VisibilityOff
+import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
 import androidx.compose.material3.Surface
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
+import androidx.compose.ui.draw.scale
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.RectangleShape
+import androidx.compose.ui.graphics.drawscope.Stroke
 import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.painterResource
@@ -330,3 +350,159 @@ private fun DockIcon(
         )
     }
 }
+
+@Composable
+fun PenPlayground(onClose: () -> Unit) {
+    var selectedPen by remember { mutableStateOf(PenType.FOUNTAIN_PEN) }
+    var selectedColor by remember { mutableStateOf(Color(0xFF2196F3)) } // Default Blue
+    val colors = listOf(
+        Color(0xFFF44336), // Red
+        Color(0xFFFFEB3B), // Yellow
+        Color(0xFF2196F3), // Blue
+        Color(0xFF4CAF50), // Green
+        Color(0xFF9C27B0), // Purple
+        Color.White, // White
+        Color.Black // Black
+    )
+
+    Surface(
+        modifier = Modifier
+            .fillMaxWidth(0.95f)
+            .padding(16.dp),
+        shape = RoundedCornerShape(28.dp),
+        color = Color(0xFF1E1E1E),
+        shadowElevation = 16.dp,
+        tonalElevation = 0.dp
+    ) {
+        Column(
+            modifier = Modifier.padding(vertical = 24.dp, horizontal = 16.dp),
+            horizontalAlignment = Alignment.CenterHorizontally
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Icon(
+                    imageVector = Icons.Default.Star,
+                    contentDescription = null,
+                    tint = Color.Gray,
+                    modifier = Modifier.padding(start = 12.dp)
+                )
+
+                IconButton(onClick = onClose) {
+                    Icon(
+                        painter = painterResource(
+                            id = R.drawable.close
+                        ),
+                        contentDescription = "Close", tint = Color.Gray
+                    )
+                }
+            }
+
+            Spacer(Modifier.height(40.dp))
+
+            // --- The Pen Rack ---
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .height(140.dp),
+                horizontalArrangement = Arrangement.SpaceEvenly,
+                verticalAlignment = Alignment.Bottom
+            ) {
+                PenType.entries.forEach { type ->
+                    val isSelected = selectedPen == type
+
+                    val offsetY by animateDpAsState(
+                        targetValue = if (isSelected) (-20).dp else 0.dp, label = "offset"
+                    )
+
+                    val scale by animateFloatAsState(
+                        targetValue = if (isSelected) 1.2f else 1.0f, label = "scale"
+                    )
+
+                    Column(
+                        horizontalAlignment = Alignment.CenterHorizontally,
+                        modifier = Modifier
+                            .offset(y = offsetY)
+                            .scale(scale)
+                            .clickable(
+                                interactionSource = remember { MutableInteractionSource() },
+                                indication = null
+                            ) { selectedPen = type }) {
+                        // Drawing Area
+                        Box(
+                            modifier = Modifier
+                                .width(40.dp)
+                                .height(120.dp),
+                            contentAlignment = Alignment.BottomCenter
+                        ) {
+                            PenIcon(
+                                color = selectedColor,
+                                type = type,
+                                isSelected = isSelected,
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .fillMaxHeight(0.8f)
+                            )
+                        }
+                    }
+                }
+            }
+
+            Spacer(Modifier.height(24.dp))
+
+            HorizontalDivider(
+                modifier = Modifier.padding(horizontal = 12.dp),
+                color = Color.White.copy(alpha = 0.1f),
+                thickness = 1.dp
+            )
+
+            Spacer(Modifier.height(24.dp))
+
+            // --- Color Palette ---
+            Row(
+                modifier = Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceEvenly
+            ) {
+                colors.forEach { color ->
+                    val isSelected = selectedColor == color
+
+                    Box(
+                        contentAlignment = Alignment.Center,
+                        modifier = Modifier
+                            .size(40.dp)
+                            .clickable { selectedColor = color }) {
+                        Canvas(modifier = Modifier.fillMaxSize()) {
+                            drawCircle(color = color)
+                            if (isSelected) {
+                                drawCircle(
+                                    color = Color.White,
+                                    radius = size.minDimension / 2,
+                                    style = Stroke(width = 3.dp.toPx())
+                                )
+                            }
+                        }
+
+                        if (isSelected && color == Color.White) {
+                            Icon(
+                                imageVector = Icons.Default.Check,
+                                contentDescription = null,
+                                tint = Color.Black,
+                                modifier = Modifier.size(20.dp)
+                            )
+                        } else if (isSelected) {
+                            Icon(
+                                imageVector = Icons.Default.Check,
+                                contentDescription = null,
+                                tint = if (color == Color.Black) Color.White
+                                else Color.Black.copy(alpha = 0.6f),
+                                modifier = Modifier.size(20.dp)
+                            )
+                        }
+                    }
+                }
+            }
+            Spacer(Modifier.height(16.dp))
+        }
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfDialogs.kt

@@ -0,0 +1,149 @@
+package com.aryan.reader.pdf
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.selection.selectable
+import androidx.compose.foundation.selection.selectableGroup
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Info
+import androidx.compose.material.icons.filled.Visibility
+import androidx.compose.material.icons.filled.VisibilityOff
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.RadioButton
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.semantics.Role
+import androidx.compose.ui.text.input.PasswordVisualTransformation
+import androidx.compose.ui.text.input.VisualTransformation
+import androidx.compose.ui.unit.dp
+import com.aryan.reader.R
+
+@Composable
+internal fun PasswordDialog(isError: Boolean, onDismiss: () -> Unit, onConfirm: (String) -> Unit) {
+    var password by remember { mutableStateOf("") }
+    var passwordVisible by remember { mutableStateOf(false) }
+
+    AlertDialog(onDismissRequest = onDismiss, title = { Text(stringResource(R.string.title_password_protected)) }, text = {
+        Column {
+            Text(stringResource(R.string.desc_password_protected))
+            Spacer(modifier = Modifier.height(16.dp))
+            OutlinedTextField(
+                value = password,
+                onValueChange = { password = it },
+                label = { Text(stringResource(R.string.password)) },
+                singleLine = true,
+                visualTransformation = if (passwordVisible) VisualTransformation.None
+                else PasswordVisualTransformation(),
+                keyboardActions = KeyboardActions(onDone = { onConfirm(password) }),
+                isError = isError,
+                supportingText = if (isError) {
+                    { Text(stringResource(R.string.error_incorrect_password)) }
+                } else null,
+                trailingIcon = {
+                    val image = if (passwordVisible) Icons.Filled.Visibility
+                    else Icons.Filled.VisibilityOff
+
+                    val description = if (passwordVisible) stringResource(R.string.content_desc_hide_password) else stringResource(R.string.content_desc_show_password)
+
+                    IconButton(onClick = { passwordVisible = !passwordVisible }) {
+                        Icon(imageVector = image, description)
+                    }
+                },
+                modifier = Modifier.fillMaxWidth()
+            )
+        }
+    }, confirmButton = {
+        Button(onClick = { onConfirm(password) }, enabled = password.isNotBlank()) {
+            Text(stringResource(R.string.action_open))
+        }
+    }, dismissButton = { TextButton(onClick = onDismiss) { Text(stringResource(R.string.action_cancel)) } })
+}
+
+@Composable
+internal fun OcrLanguageSelectionDialog(
+    currentLanguage: OcrLanguage,
+    isFirstRun: Boolean,
+    onDismiss: () -> Unit,
+    onLanguageSelected: (OcrLanguage) -> Unit
+) {
+    AlertDialog(onDismissRequest = onDismiss, title = { Text(stringResource(R.string.title_select_ocr_language)) }, text = {
+        Column(Modifier.selectableGroup()) {
+            Text(
+                stringResource(R.string.desc_select_ocr_language),
+                style = MaterialTheme.typography.bodyMedium,
+                modifier = Modifier.padding(bottom = 8.dp)
+            )
+
+            if (isFirstRun) {
+                Surface(
+                    color = MaterialTheme.colorScheme.secondaryContainer,
+                    shape = RoundedCornerShape(8.dp),
+                    modifier = Modifier.padding(bottom = 16.dp)
+                ) {
+                    Row(
+                        Modifier.padding(8.dp), verticalAlignment = Alignment.CenterVertically
+                    ) {
+                        Icon(
+                            imageVector = Icons.Default.Info,
+                            contentDescription = null,
+                            modifier = Modifier.size(16.dp),
+                            tint = MaterialTheme.colorScheme.onSecondaryContainer
+                        )
+                        Spacer(Modifier.width(8.dp))
+                        Text(
+                            stringResource(R.string.desc_ocr_language_change_later),
+                            style = MaterialTheme.typography.bodySmall,
+                            color = MaterialTheme.colorScheme.onSecondaryContainer
+                        )
+                    }
+                }
+            } else {
+                Spacer(Modifier.height(8.dp))
+            }
+
+            OcrLanguage.entries.forEach { language ->
+                Row(
+                    Modifier
+                        .fillMaxWidth()
+                        .height(56.dp)
+                        .selectable(
+                            selected = (language == currentLanguage),
+                            onClick = { onLanguageSelected(language) },
+                            role = Role.RadioButton
+                        )
+                        .padding(horizontal = 16.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    RadioButton(selected = (language == currentLanguage), onClick = null)
+                    Text(
+                        text = language.displayName,
+                        style = MaterialTheme.typography.bodyLarge,
+                        modifier = Modifier.padding(start = 16.dp)
+                    )
+                }
+            }
+        }
+    }, confirmButton = { TextButton(onClick = onDismiss) { Text(stringResource(R.string.action_cancel)) } })
+}

app/src/main/java/com/aryan/reader/pdf/PdfDocumentUtils.kt

@@ -0,0 +1,194 @@
+package com.aryan.reader.pdf
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.net.Uri
+import android.os.Bundle
+import android.os.CancellationSignal
+import android.os.ParcelFileDescriptor
+import android.print.PageRange
+import android.print.PrintAttributes
+import android.print.PrintDocumentAdapter
+import android.print.PrintDocumentInfo
+import android.provider.OpenableColumns
+import android.util.LruCache
+import androidx.core.graphics.createBitmap
+import io.legere.pdfiumandroid.suspend.PdfiumCoreKt
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import timber.log.Timber
+import java.io.FileInputStream
+import java.io.FileOutputStream
+import kotlin.random.Random
+
+object PdfiumCoreProvider {
+    val core: PdfiumCoreKt by lazy {
+        PdfiumCoreKt(Dispatchers.Default)
+    }
+}
+
+internal data class DocumentCacheItem(
+    val doc: ReaderDocument,
+    val pfd: ParcelFileDescriptor,
+    val totalPages: Int,
+    val pageAspectRatios: List<Float>,
+    val flatTableOfContents: List<TocEntry>
+)
+
+internal class DocumentCache(val maxSize: Int = 3) {
+    val cache = object : LruCache<String, DocumentCacheItem>(maxSize) {
+        override fun entryRemoved(
+            evicted: Boolean,
+            key: String,
+            oldValue: DocumentCacheItem,
+            newValue: DocumentCacheItem?
+        ) {
+            if (evicted) {
+                CoroutineScope(Dispatchers.IO).launch {
+                    try { oldValue.doc.close() } catch (e: Exception) { Timber.e(e) }
+                    try { oldValue.pfd.close() } catch (e: Exception) { Timber.e(e) }
+                }
+            }
+        }
+    }
+    fun put(key: String, item: DocumentCacheItem) { cache.put(key, item) }
+    fun get(key: String): DocumentCacheItem? = cache.get(key)
+    fun evictAll() { cache.evictAll() }
+}
+
+class PdfPrintDocumentAdapter(
+    private val context: Context,
+    private val pdfUri: Uri,
+    private val fileName: String
+) : PrintDocumentAdapter() {
+
+    override fun onLayout(
+        oldAttributes: PrintAttributes?,
+        newAttributes: PrintAttributes?,
+        cancellationSignal: CancellationSignal?,
+        callback: LayoutResultCallback?,
+        extras: Bundle?
+    ) {
+        if (cancellationSignal?.isCanceled == true) {
+            callback?.onLayoutCancelled()
+            return
+        }
+
+        val info = PrintDocumentInfo.Builder(fileName)
+            .setContentType(PrintDocumentInfo.CONTENT_TYPE_DOCUMENT)
+            .build()
+
+        callback?.onLayoutFinished(info, true)
+    }
+
+    override fun onWrite(
+        pages: Array<out PageRange>?,
+        destination: ParcelFileDescriptor?,
+        cancellationSignal: CancellationSignal?,
+        callback: WriteResultCallback?
+    ) {
+        try {
+            context.contentResolver.openFileDescriptor(pdfUri, "r")?.use { pfd ->
+                FileInputStream(pfd.fileDescriptor).use { input ->
+                    FileOutputStream(destination?.fileDescriptor).use { output ->
+                        val buf = ByteArray(8192)
+                        var bytesRead: Int
+                        while (input.read(buf).also { bytesRead = it } > 0) {
+                            if (cancellationSignal?.isCanceled == true) {
+                                Timber.tag("PdfPrint").d("Print job cancelled during write")
+                                callback?.onWriteCancelled()
+                                return
+                            }
+                            output.write(buf, 0, bytesRead)
+                        }
+                    }
+                }
+            }
+            Timber.tag("PdfPrint").i("PDF successfully streamed to print spooler")
+            callback?.onWriteFinished(arrayOf(PageRange.ALL_PAGES))
+        } catch (e: Exception) {
+            Timber.tag("PdfPrint").e(e, "Error writing PDF to print spooler")
+            callback?.onWriteFailed(e.message)
+        }
+    }
+}
+
+internal fun generateShortId(): String {
+    return Random.nextInt(1000, 9999).toString()
+}
+
+internal fun getSuggestedFilename(originalName: String?, isAnnotated: Boolean): String {
+    val base = originalName?.substringBeforeLast('.') ?: "Document"
+    val safeBase = base.replace("[^a-zA-Z0-9._-]".toRegex(), "_").take(50)
+
+    val suffix = if (isAnnotated) "_annotated" else ""
+    val shortId = generateShortId()
+
+    return "${safeBase}${suffix}_${shortId}.pdf"
+}
+
+internal fun getFastFileId(context: Context, uri: Uri): String {
+    var result = uri.toString()
+    try {
+        context.contentResolver.query(uri, null, null, null, null)?.use { cursor ->
+            if (cursor.moveToFirst()) {
+                val sizeIndex = cursor.getColumnIndex(OpenableColumns.SIZE)
+                val nameIndex = cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME)
+
+                val size = if (sizeIndex != -1) cursor.getLong(sizeIndex) else 0L
+                val name = if (nameIndex != -1) cursor.getString(nameIndex) else "unknown"
+
+                result = "${name}_${size}"
+            }
+        }
+    } catch (e: Exception) {
+        Timber.e(e, "Failed to generate fast file ID")
+    }
+    return result
+}
+
+internal suspend fun renderPageToBitmap(doc: ReaderDocument, pageIndex: Int): Bitmap? {
+    return withContext(Dispatchers.IO) {
+        var page: ReaderPage? = null
+        try {
+            page = doc.openPage(pageIndex)
+            if (page == null) return@withContext null
+
+            val bitmapWidth = 1080
+            val aspectRatio =
+                page.getPageWidthPoint().toFloat() / page.getPageHeightPoint().toFloat()
+            if (aspectRatio.isNaN() || aspectRatio <= 0) {
+                Timber.e("Invalid aspect ratio for page $pageIndex")
+                return@withContext null
+            }
+            val bitmapHeight = (bitmapWidth / aspectRatio).toInt()
+
+            if (bitmapHeight <= 0) {
+                Timber.e("Invalid calculated bitmap height for page $pageIndex")
+                return@withContext null
+            }
+
+            val bitmap = createBitmap(bitmapWidth, bitmapHeight)
+            page.renderPageBitmap(
+                bitmap = bitmap,
+                startX = 0,
+                startY = 0,
+                drawSizeX = bitmapWidth,
+                drawSizeY = bitmapHeight,
+                renderAnnot = true
+            )
+            bitmap
+        } catch (e: Exception) {
+            Timber.e(e, "Error rendering page $pageIndex to bitmap for summarization")
+            null
+        } finally {
+            try {
+                page?.close()
+            } catch (e: Exception) {
+                Timber.w(e, "Error closing page in renderPageToBitmap")
+            }
+        }
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfModels.kt

@@ -0,0 +1,36 @@
+package com.aryan.reader.pdf
+
+import android.content.Context
+import androidx.annotation.OptIn
+import androidx.core.content.edit
+import androidx.media3.common.util.UnstableApi
+import com.aryan.reader.pdf.data.PdfAnnotation
+import com.aryan.reader.tts.TtsPlaybackManager
+
+internal enum class SaveMode {
+    ORIGINAL, ANNOTATED
+}
+
+enum class SearchHighlightMode {
+    FOCUSED, ALL
+}
+
+internal sealed interface HistoryAction {
+    data class Add(val pageIndex: Int, val annotation: PdfAnnotation) : HistoryAction
+    data class Remove(val items: Map<Int, List<PdfAnnotation>>) : HistoryAction
+}
+
+internal enum class DockLocation {
+    TOP, BOTTOM, FLOATING
+}
+
+internal enum class DisplayMode {
+    PAGINATION, VERTICAL_SCROLL
+}
+
+@OptIn(UnstableApi::class)
+@Suppress("unused")
+internal fun saveTtsMode(context: Context, mode: TtsPlaybackManager.TtsMode) {
+    val prefs = context.getSharedPreferences("reader_prefs", Context.MODE_PRIVATE)
+    prefs.edit { putString(TTS_MODE_KEY, mode.name) }
+}

app/src/main/java/com/aryan/reader/pdf/PdfNavigationDrawerContent.kt

@@ -0,0 +1,537 @@
+// PdfNavigationDrawerContent.kt
+package com.aryan.reader.pdf
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.foundation.pager.HorizontalPager
+import androidx.compose.foundation.pager.rememberPagerState
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.MoreVert
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.runtime.saveable.rememberSaveable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.text.font.FontStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun PdfNavigationDrawerContent(
+    flatTableOfContents: List<TocEntry>,
+    bookmarks: Set<PdfBookmark>,
+    userHighlights: List<PdfUserHighlight>,
+    currentPage: Int,
+    customHighlightColors: Map<PdfHighlightColor, Color>,
+    onPageSelected: (Int) -> Unit,
+    onRenameBookmark: (PdfBookmark, String) -> Unit,
+    onDeleteBookmark: (PdfBookmark) -> Unit,
+    onDeleteHighlight: (PdfUserHighlight) -> Unit,
+    onNoteRequested: (String?) -> Unit,
+    onCloseDrawer: () -> Unit
+) {
+    val drawerPagerState = rememberPagerState(pageCount = { 3 })
+    val drawerScope = rememberCoroutineScope()
+
+    Column(modifier = Modifier.fillMaxSize()) {
+        TabRow(selectedTabIndex = drawerPagerState.currentPage) {
+            Tab(selected = drawerPagerState.currentPage == 0, onClick = {
+                drawerScope.launch { drawerPagerState.animateScrollToPage(0) }
+            }, text = { Text("Chapters") })
+            Tab(
+                selected = drawerPagerState.currentPage == 1,
+                onClick = {
+                    drawerScope.launch { drawerPagerState.animateScrollToPage(1) }
+                },
+                text = { Text("Bookmarks") },
+                modifier = Modifier.testTag("BookmarksTab")
+            )
+            Tab(
+                selected = drawerPagerState.currentPage == 2,
+                onClick = {
+                    drawerScope.launch { drawerPagerState.animateScrollToPage(2) }
+                },
+                text = { Text("Highlights") },
+                modifier = Modifier.testTag("HighlightsTab")
+            )
+        }
+
+        HorizontalPager(
+            state = drawerPagerState,
+            modifier = Modifier.fillMaxWidth().weight(1f)
+        ) { page ->
+            when (page) {
+                0 -> { // Chapters Page
+                    if (flatTableOfContents.isEmpty()) {
+                        Box(
+                            modifier = Modifier.fillMaxSize().padding(16.dp),
+                            contentAlignment = Alignment.Center
+                        ) {
+                            Text(
+                                "Chapters are not available for this book.",
+                                style = MaterialTheme.typography.bodyLarge,
+                                textAlign = TextAlign.Center
+                            )
+                        }
+                    } else {
+                        val listState = rememberLazyListState()
+
+                        val allParentIndices = remember(flatTableOfContents) {
+                            flatTableOfContents.indices.filter { i ->
+                                val next = flatTableOfContents.getOrNull(i + 1)
+                                next != null && next.nestLevel > flatTableOfContents[i].nestLevel
+                            }.toSet()
+                        }
+
+                        var expandedEntryIndices by rememberSaveable(flatTableOfContents) {
+                            mutableStateOf(allParentIndices)
+                        }
+
+                        val visibleItemInfo by remember(flatTableOfContents) {
+                            derivedStateOf {
+                                val result = mutableListOf<Pair<Int, TocEntry>>()
+                                val visibilityStack = BooleanArray(20) { false }
+                                visibilityStack[0] = true
+
+                                for (i in flatTableOfContents.indices) {
+                                    val entry = flatTableOfContents[i]
+                                    val level = entry.nestLevel.coerceIn(0, 19)
+
+                                    if (visibilityStack[level]) {
+                                        result.add(i to entry)
+                                        val isExpanded = expandedEntryIndices.contains(i)
+                                        if (level + 1 < visibilityStack.size) {
+                                            visibilityStack[level + 1] = isExpanded
+                                        }
+                                    } else {
+                                        if (level + 1 < visibilityStack.size) {
+                                            visibilityStack[level + 1] = false
+                                        }
+                                    }
+                                }
+                                result
+                            }
+                        }
+
+                        val currentTocEntry by remember(currentPage, flatTableOfContents) {
+                            derivedStateOf {
+                                flatTableOfContents.lastOrNull { it.pageIndex <= currentPage }
+                            }
+                        }
+
+                        val onScrollToCurrent = {
+                            drawerScope.launch {
+                                val targetEntry = currentTocEntry ?: return@launch
+                                val targetOriginalIndex = flatTableOfContents.indexOf(targetEntry)
+                                if (targetOriginalIndex != -1) {
+                                    var currentLevel = targetEntry.nestLevel
+                                    val newExpanded = expandedEntryIndices.toMutableSet()
+
+                                    for (i in targetOriginalIndex downTo 0) {
+                                        val entry = flatTableOfContents[i]
+                                        if (entry.nestLevel < currentLevel) {
+                                            newExpanded.add(i)
+                                            currentLevel = entry.nestLevel
+                                        }
+                                        if (currentLevel == 0) break
+                                    }
+
+                                    expandedEntryIndices = newExpanded
+
+                                    val visibleIdx = visibleItemInfo.indexOfFirst { it.second == targetEntry }
+
+                                    if (visibleIdx != -1) {
+                                        var attempts = 0
+                                        while (listState.layoutInfo.totalItemsCount <= visibleIdx && attempts < 10) {
+                                            delay(30)
+                                            attempts++
+                                        }
+
+                                        listState.animateScrollToItem(visibleIdx)
+                                    }
+                                }
+                            }
+                            Unit
+                        }
+
+                        Column(modifier = Modifier.fillMaxSize()) {
+                            Row(
+                                modifier = Modifier
+                                    .fillMaxWidth()
+                                    .padding(horizontal = 4.dp),
+                                horizontalArrangement = Arrangement.SpaceEvenly
+                            ) {
+                                TextButton(onClick = { expandedEntryIndices = flatTableOfContents.indices.toSet() }) {
+                                    Text("Expand All")
+                                }
+                                TextButton(onClick = { expandedEntryIndices = emptySet() }) {
+                                    Text("Collapse All")
+                                }
+                                TextButton(onClick = onScrollToCurrent) {
+                                    Text("Locate")
+                                }
+                            }
+
+                            HorizontalDivider()
+
+                            Box(modifier = Modifier.fillMaxWidth().weight(1f)) {
+                                LazyColumn(
+                                    state = listState,
+                                    modifier = Modifier
+                                        .fillMaxHeight()
+                                        .padding(end = 12.dp)
+                                ) {
+                                    items(
+                                        items = visibleItemInfo,
+                                        key = { it.second.title + it.first }
+                                    ) { item ->
+                                        val (originalIndex, entry) = item
+
+                                        val nextItem = flatTableOfContents.getOrNull(originalIndex + 1)
+                                        val hasChildren = nextItem != null && nextItem.nestLevel > entry.nestLevel
+                                        val isExpanded = expandedEntryIndices.contains(originalIndex)
+                                        val isCurrentChapter = entry == currentTocEntry
+
+                                        PdfTocTreeItem(
+                                            label = entry.title,
+                                            nestLevel = entry.nestLevel,
+                                            isExpanded = isExpanded,
+                                            hasChildren = hasChildren,
+                                            isCurrent = isCurrentChapter,
+                                            onToggleExpand = {
+                                                expandedEntryIndices = if (isExpanded) {
+                                                    expandedEntryIndices - originalIndex
+                                                } else {
+                                                    expandedEntryIndices + originalIndex
+                                                }
+                                            },
+                                            onClick = {
+                                                onCloseDrawer()
+                                                onPageSelected(entry.pageIndex)
+                                            }
+                                        )
+                                    }
+                                }
+
+                                VerticalScrollbar(
+                                    listState = listState,
+                                    modifier = Modifier.align(Alignment.CenterEnd)
+                                )
+                            }
+                        }
+                    }
+                }
+
+                1 -> { // Bookmarks Page
+                    if (bookmarks.isEmpty()) {
+                        Box(
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .padding(16.dp),
+                            contentAlignment = Alignment.Center
+                        ) {
+                            Text(
+                                "You haven't added any bookmarks yet.",
+                                style = MaterialTheme.typography.bodyLarge,
+                                textAlign = TextAlign.Center
+                            )
+                        }
+                    } else {
+                        var bookmarkMenuExpandedFor by remember { mutableStateOf<PdfBookmark?>(null) }
+                        var showDeleteConfirmDialogFor by remember { mutableStateOf<PdfBookmark?>(null) }
+                        var showRenameBookmarkDialog by remember { mutableStateOf<PdfBookmark?>(null) }
+
+                        val sortedBookmarks = remember(bookmarks) {
+                            bookmarks.sortedBy { it.pageIndex }
+                        }
+
+                        LazyColumn(modifier = Modifier.fillMaxSize()) {
+                            itemsIndexed(
+                                items = sortedBookmarks, key = { index, bookmark ->
+                                    "bm_${index}_${bookmark.pageIndex}"
+                                }) { _, bookmark ->
+                                ListItem(headlineContent = {
+                                    Text(
+                                        bookmark.title,
+                                        fontWeight = FontWeight.Bold,
+                                        maxLines = 1,
+                                        overflow = TextOverflow.Ellipsis
+                                    )
+                                }, supportingContent = {
+                                    Text(
+                                        "Page ${bookmark.pageIndex + 1} of ${bookmark.totalPages}",
+                                        style = MaterialTheme.typography.bodySmall
+                                    )
+                                }, trailingContent = {
+                                    Box {
+                                        IconButton(
+                                            onClick = {
+                                                bookmarkMenuExpandedFor = bookmark
+                                            }) {
+                                            Icon(
+                                                imageVector = Icons.Default.MoreVert,
+                                                contentDescription = "More options for bookmark"
+                                            )
+                                        }
+                                        DropdownMenu(
+                                            expanded = bookmarkMenuExpandedFor == bookmark,
+                                            onDismissRequest = {
+                                                bookmarkMenuExpandedFor = null
+                                            }) {
+                                            DropdownMenuItem(text = {
+                                                Text("Rename")
+                                            }, onClick = {
+                                                showRenameBookmarkDialog = bookmark
+                                                bookmarkMenuExpandedFor = null
+                                            })
+                                            DropdownMenuItem(text = {
+                                                Text("Delete")
+                                            }, onClick = {
+                                                showDeleteConfirmDialogFor = bookmark
+                                                bookmarkMenuExpandedFor = null
+                                            })
+                                        }
+                                    }
+                                }, modifier = Modifier
+                                    .clickable {
+                                        onCloseDrawer()
+                                        onPageSelected(bookmark.pageIndex)
+                                    }
+                                    .testTag(
+                                        "BookmarkItem_${bookmark.pageIndex}"
+                                    ))
+                                HorizontalDivider()
+                            }
+                        }
+
+                        showRenameBookmarkDialog?.let { bookmarkToRename ->
+                            var newTitle by remember { mutableStateOf("") }
+
+                            AlertDialog(onDismissRequest = {
+                                showRenameBookmarkDialog = null
+                            }, title = { Text("Rename Bookmark") }, text = {
+                                OutlinedTextField(
+                                    value = newTitle,
+                                    onValueChange = { newTitle = it },
+                                    label = { Text("New Title") },
+                                    placeholder = {
+                                        Text(
+                                            text = bookmarkToRename.title,
+                                            maxLines = 1,
+                                            overflow = TextOverflow.Ellipsis,
+                                            style = MaterialTheme.typography.bodyMedium,
+                                            color = MaterialTheme.colorScheme.onSurfaceVariant.copy(
+                                                alpha = 0.6f
+                                            )
+                                        )
+                                    },
+                                    singleLine = true,
+                                    modifier = Modifier.fillMaxWidth()
+                                )
+                            }, confirmButton = {
+                                TextButton(
+                                    onClick = {
+                                        onRenameBookmark(bookmarkToRename, newTitle)
+                                        showRenameBookmarkDialog = null
+                                    }) { Text("Save") }
+                            }, dismissButton = {
+                                TextButton(
+                                    onClick = {
+                                        showRenameBookmarkDialog = null
+                                    }) { Text("Cancel") }
+                            })
+                        }
+
+                        showDeleteConfirmDialogFor?.let { bookmarkToDelete ->
+                            AlertDialog(onDismissRequest = {
+                                showDeleteConfirmDialogFor = null
+                            }, title = { Text("Delete Bookmark?") }, text = {
+                                Text(
+                                    "Are you sure you want to permanently delete this bookmark?"
+                                )
+                            }, confirmButton = {
+                                TextButton(
+                                    onClick = {
+                                        onDeleteBookmark(bookmarkToDelete)
+                                        showDeleteConfirmDialogFor = null
+                                    }) { Text("Delete") }
+                            }, dismissButton = {
+                                TextButton(
+                                    onClick = {
+                                        showDeleteConfirmDialogFor = null
+                                    }) { Text("Cancel") }
+                            })
+                        }
+                    }
+                }
+                2 -> { // Highlights Page
+                    if (userHighlights.isEmpty()) {
+                        Box(
+                            modifier = Modifier
+                                .fillMaxSize()
+                                .padding(16.dp),
+                            contentAlignment = Alignment.Center
+                        ) {
+                            Text(
+                                "You haven't added any highlights yet.",
+                                style = MaterialTheme.typography.bodyLarge,
+                                textAlign = TextAlign.Center
+                            )
+                        }
+                    } else {
+                        var showDeleteConfirmDialogFor by remember { mutableStateOf<PdfUserHighlight?>(null) }
+                        var filterWithNotesOnly by remember { mutableStateOf(false) }
+
+                        Column(modifier = Modifier.fillMaxSize()) {
+                            Row(
+                                modifier = Modifier.fillMaxWidth().padding(horizontal = 16.dp, vertical = 8.dp),
+                                horizontalArrangement = Arrangement.spacedBy(8.dp)
+                            ) {
+                                FilterChip(
+                                    selected = !filterWithNotesOnly,
+                                    onClick = { filterWithNotesOnly = false },
+                                    label = { Text("All") }
+                                )
+                                FilterChip(
+                                    selected = filterWithNotesOnly,
+                                    onClick = { filterWithNotesOnly = true },
+                                    label = { Text("With Notes") }
+                                )
+                            }
+
+                            val filteredHighlights = if (filterWithNotesOnly) {
+                                userHighlights.filter { !it.note.isNullOrBlank() }
+                            } else {
+                                userHighlights.toList()
+                            }
+
+                            val sortedHighlights = remember(filteredHighlights) {
+                                filteredHighlights.sortedBy { it.pageIndex }
+                            }
+
+                            LazyColumn(modifier = Modifier.fillMaxSize()) {
+                                itemsIndexed(
+                                    items = sortedHighlights,
+                                    key = { _, highlight -> highlight.id }
+                                ) { _, highlight ->
+                                    ListItem(
+                                        headlineContent = {
+                                            Text(
+                                                text = highlight.text.ifBlank { "Highlighted section" },
+                                                maxLines = 2,
+                                                overflow = TextOverflow.Ellipsis,
+                                                fontWeight = FontWeight.SemiBold
+                                            )
+                                        },
+                                        supportingContent = {
+                                            Column {
+                                                Row(verticalAlignment = Alignment.CenterVertically) {
+                                                    val displayColor = customHighlightColors[highlight.color] ?: highlight.color.color
+
+                                                    Box(
+                                                        modifier = Modifier
+                                                            .size(12.dp)
+                                                            .background(displayColor, CircleShape)
+                                                    )
+                                                    Spacer(Modifier.width(8.dp))
+                                                    Text(
+                                                        "Page ${highlight.pageIndex + 1}",
+                                                        style = MaterialTheme.typography.labelMedium,
+                                                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                                                    )
+                                                }
+                                                if (!highlight.note.isNullOrBlank()) {
+                                                    Spacer(Modifier.height(8.dp))
+                                                    Surface(
+                                                        shape = RoundedCornerShape(8.dp),
+                                                        color = MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.5f),
+                                                        modifier = Modifier.fillMaxWidth()
+                                                    ) {
+                                                        Text(
+                                                            text = highlight.note,
+                                                            style = MaterialTheme.typography.bodySmall.copy(fontStyle = FontStyle.Italic),
+                                                            modifier = Modifier.padding(12.dp),
+                                                            color = MaterialTheme.colorScheme.onSurfaceVariant
+                                                        )
+                                                    }
+                                                }
+                                            }
+                                        },
+                                        trailingContent = {
+                                            Box {
+                                                var highlightMenuExpanded by remember { mutableStateOf(false) }
+                                                IconButton(onClick = { highlightMenuExpanded = true }) {
+                                                    Icon(Icons.Default.MoreVert, contentDescription = "Options")
+                                                }
+                                                DropdownMenu(
+                                                    expanded = highlightMenuExpanded,
+                                                    onDismissRequest = { highlightMenuExpanded = false }
+                                                ) {
+                                                    DropdownMenuItem(
+                                                        text = { Text(if (highlight.note.isNullOrBlank()) "Add Note" else "Edit Note") },
+                                                        onClick = {
+                                                            onNoteRequested(highlight.id)
+                                                            highlightMenuExpanded = false
+                                                            onCloseDrawer()
+                                                        }
+                                                    )
+                                                    DropdownMenuItem(
+                                                        text = { Text("Delete") },
+                                                        onClick = {
+                                                            showDeleteConfirmDialogFor = highlight
+                                                            highlightMenuExpanded = false
+                                                        }
+                                                    )
+                                                }
+                                            }
+                                        },
+                                        modifier = Modifier.clickable {
+                                            onCloseDrawer()
+                                            onPageSelected(highlight.pageIndex)
+                                        }
+                                    )
+                                    HorizontalDivider()
+                                }
+                            }
+                        }
+
+                        showDeleteConfirmDialogFor?.let { highlightToDelete ->
+                            AlertDialog(
+                                onDismissRequest = { showDeleteConfirmDialogFor = null },
+                                title = { Text("Delete Highlight?") },
+                                text = { Text("Are you sure you want to permanently delete this highlight?") },
+                                confirmButton = {
+                                    TextButton(
+                                        onClick = {
+                                            onDeleteHighlight(highlightToDelete)
+                                            showDeleteConfirmDialogFor = null
+                                        }
+                                    ) { Text("Delete") }
+                                },
+                                dismissButton = {
+                                    TextButton(
+                                        onClick = { showDeleteConfirmDialogFor = null }
+                                    ) { Text("Cancel") }
+                                }
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfNavigationUI.kt

@@ -0,0 +1,253 @@
+package com.aryan.reader.pdf
+
+import android.graphics.Bitmap
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.foundation.BorderStroke
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.gestures.Orientation
+import androidx.compose.foundation.gestures.draggable
+import androidx.compose.foundation.gestures.rememberDraggableState
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.interaction.collectIsDraggedAsState
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.offset
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.derivedStateOf
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.alpha
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.RectangleShape
+import androidx.compose.ui.unit.dp
+import com.aryan.reader.R
+
+private data class ScrollbarCalculations(
+    val thumbHeight: Float,
+    val thumbOffset: Float,
+    val contentHeight: Float,
+    val viewportHeight: Float
+)
+
+@Composable
+fun VerticalScrollbar(
+    listState: LazyListState,
+    modifier: Modifier = Modifier
+) {
+    val interactionSource = remember { MutableInteractionSource() }
+    val isDragged by interactionSource.collectIsDraggedAsState()
+
+    val scrollbarState by remember {
+        derivedStateOf {
+            val layoutInfo = listState.layoutInfo
+            val totalItems = layoutInfo.totalItemsCount
+            val visibleItemsInfo = layoutInfo.visibleItemsInfo
+            val viewportHeight = layoutInfo.viewportSize.height.toFloat()
+
+            if (totalItems == 0 || visibleItemsInfo.isEmpty() || viewportHeight <= 0f) {
+                return@derivedStateOf null
+            }
+
+            // Estimate total height
+            val averageItemHeight = visibleItemsInfo.sumOf { it.size } / visibleItemsInfo.size.toFloat()
+            val estimatedContentHeight = (averageItemHeight * totalItems).coerceAtLeast(viewportHeight)
+            val viewportRatio = viewportHeight / estimatedContentHeight
+
+            if (viewportRatio >= 1f) return@derivedStateOf null
+
+            val thumbHeight = (viewportHeight * viewportRatio).coerceIn(80f, viewportHeight / 2)
+
+            val firstItemIndex = listState.firstVisibleItemIndex
+            val firstItemOffset = listState.firstVisibleItemScrollOffset
+            val currentScrollPixels = (firstItemIndex * averageItemHeight) + firstItemOffset
+            val maxScrollPixels = estimatedContentHeight - viewportHeight
+            val scrollProgress = (currentScrollPixels / maxScrollPixels).coerceIn(0f, 1f)
+            val trackHeight = viewportHeight - thumbHeight
+            val thumbOffset = trackHeight * scrollProgress
+
+            ScrollbarCalculations(
+                thumbHeight = thumbHeight,
+                thumbOffset = thumbOffset,
+                contentHeight = estimatedContentHeight,
+                viewportHeight = viewportHeight
+            )
+        }
+    }
+
+    val targetAlpha = if (listState.isScrollInProgress || isDragged) 1f else 0f
+    val alpha by animateFloatAsState(
+        targetValue = targetAlpha,
+        animationSpec = tween(durationMillis = 200),
+        label = "ScrollbarAlpha"
+    )
+
+    if (scrollbarState != null) {
+        val state = scrollbarState!!
+        val draggableState = rememberDraggableState { delta ->
+            val trackHeight = state.viewportHeight - state.thumbHeight
+            if (trackHeight > 0) {
+                val scrollRatio = delta / trackHeight
+                val totalScrollableDistance = state.contentHeight - state.viewportHeight
+                val scrollDelta = scrollRatio * totalScrollableDistance
+                listState.dispatchRawDelta(scrollDelta)
+            }
+        }
+
+        Box(
+            modifier = modifier
+                .width(30.dp)
+                .fillMaxHeight()
+                .draggable(
+                    state = draggableState,
+                    orientation = Orientation.Vertical,
+                    interactionSource = interactionSource
+                )
+        ) {
+            Box(
+                modifier = Modifier
+                    .align(Alignment.TopEnd)
+                    .graphicsLayer { translationY = state.thumbOffset }
+                    .padding(end = 4.dp)
+                    .width(6.dp)
+                    .height(with(LocalDensity.current) { state.thumbHeight.toDp() })
+                    .alpha(alpha)
+                    .background(
+                        color = if (isDragged) MaterialTheme.colorScheme.primary.copy(alpha = 0.8f)
+                        else MaterialTheme.colorScheme.onSurfaceVariant.copy(alpha = 0.5f),
+                        shape = RoundedCornerShape(100)
+                    )
+            )
+        }
+    }
+}
+
+@Composable
+internal fun PageScrubbingAnimation(currentPage: Int, totalPages: Int) {
+    Box(
+        modifier = Modifier
+            .fillMaxSize()
+            .clickable(
+                indication = null, interactionSource = remember { MutableInteractionSource() }) {},
+        contentAlignment = Alignment.Center
+    ) {
+        Column(
+            horizontalAlignment = Alignment.CenterHorizontally, modifier = Modifier
+                .background(
+                    color = MaterialTheme.colorScheme.surface.copy(
+                        alpha = 0.9f
+                    ), shape = RoundedCornerShape(16.dp)
+                )
+                .padding(horizontal = 24.dp, vertical = 16.dp)
+        ) {
+            Icon(
+                painter = painterResource(id = R.drawable.slider),
+                contentDescription = null,
+                modifier = Modifier.size(48.dp),
+                tint = MaterialTheme.colorScheme.primary
+            )
+            Spacer(Modifier.height(12.dp))
+            Text(
+                text = "Page $currentPage of $totalPages",
+                style = MaterialTheme.typography.headlineSmall,
+                color = MaterialTheme.colorScheme.onSurface
+            )
+        }
+    }
+}
+
+@Composable
+internal fun ThumbnailWithIndicator(
+    thumbnail: Bitmap, modifier: Modifier = Modifier, onClick: () -> Unit
+) {
+    val borderColor = MaterialTheme.colorScheme.primary
+    Column(modifier = modifier, horizontalAlignment = Alignment.CenterHorizontally) {
+        Surface(
+            modifier = Modifier
+                .width(45.dp)
+                .height(64.dp)
+                .clickable(onClick = onClick),
+            shape = RoundedCornerShape(4.dp),
+            border = BorderStroke(2.dp, borderColor)
+        ) {
+            Image(
+                bitmap = thumbnail.asImageBitmap(),
+                contentDescription = "Start page thumbnail",
+                contentScale = ContentScale.FillBounds,
+                modifier = Modifier.fillMaxSize()
+            )
+        }
+        Box(modifier = Modifier
+            .offset(y = (-4).dp)
+            .size(8.dp)
+            .rotate(45f)
+            .background(borderColor))
+    }
+}
+
+@Composable
+internal fun BookmarkButton(
+    isBookmarked: Boolean, onClick: () -> Unit, modifier: Modifier = Modifier
+) {
+    Box(
+        modifier = modifier
+            .width(48.dp)
+            .height(48.dp)
+            .clip(RectangleShape)
+            .clickable(
+                interactionSource = remember { MutableInteractionSource() },
+                indication = null,
+                onClick = onClick
+            ), contentAlignment = Alignment.TopCenter
+    ) {
+        AnimatedVisibility(visible = isBookmarked, enter = fadeIn(), exit = fadeOut()) {
+            Icon(
+                painter = painterResource(id = R.drawable.bookmark),
+                contentDescription = "Bookmark",
+                modifier = Modifier.size(24.dp),
+                tint = MaterialTheme.colorScheme.primary
+            )
+        }
+    }
+}
+
+@Composable
+internal fun ZoomPercentageIndicator(percentage: Int) {
+    Surface(
+        shape = RoundedCornerShape(8.dp), color = MaterialTheme.colorScheme.scrim.copy(alpha = 0.8f)
+    ) {
+        Text(
+            text = "$percentage%",
+            color = Color.White,
+            style = MaterialTheme.typography.bodyLarge,
+            modifier = Modifier.padding(horizontal = 12.dp, vertical = 6.dp)
+        )
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfPageComposable.kt

@@ -347,7 +347,9 @@ data class PageStaticData(
     val targetWidth: Int,
     val targetHeight: Int,
     val colorFilter: StableHolder<ColorFilter?>,
-    val isDarkMode: Boolean
+    val isDarkMode: Boolean,
+    val excludeImages: Boolean,
+    val imageRects: StableHolder<List<android.graphics.Rect>>
 )
 
 @Stable
@@ -416,6 +418,7 @@ internal fun PdfPageComposable(
     onTtsHighlightCenterCalculated: ((Float) -> Unit)? = null,
     onSearchHighlightCenterCalculated: ((Float) -> Unit)? = null,
     activeTheme: com.aryan.reader.ReaderTheme = com.aryan.reader.ReaderTheme("no_theme", "No Theme", Color.Unspecified, Color.Unspecified, false),
+    excludeImages: Boolean = false,
     onDoubleTap: ((Offset) -> Unit)? = null,
     isEditMode: Boolean = false,
     drawingState: PdfDrawingState? = null,
@@ -451,7 +454,9 @@ internal fun PdfPageComposable(
     customHighlightColors: Map<PdfHighlightColor, Color> = emptyMap(),
     onPaletteClick: (() -> Unit)? = null,
     lockedState: Triple<Float, Float, Float>? = null,
-    onZoomAndPanChanged: ((Float, Offset) -> Unit)? = null
+    onZoomAndPanChanged: ((Float, Offset) -> Unit)? = null,
+    onDetectPanels: suspend (Bitmap) -> List<android.graphics.RectF> = { emptyList() },
+    onShowPanelPopup: (Bitmap) -> Unit = {}
 ) {
     val pdfDocumentItem = pdfDocument.item
     var bitmapState by remember { mutableStateOf(PdfThumbnailCache.get(pageIndex)) }
@@ -852,11 +857,13 @@ internal fun PdfPageComposable(
 
     @Suppress("VariableNeverRead") var embeddedAnnotations by remember { mutableStateOf<List<EmbeddedAnnotation>>(emptyList()) }
     var standardAnnotScreenRects by remember { mutableStateOf<List<Pair<EmbeddedAnnotation, Rect>>>(emptyList()) }
+    var imageScreenRects by remember { mutableStateOf<List<android.graphics.Rect>>(emptyList()) }
 
     LaunchedEffect(pageIndex, pdfDocumentItem, actualBitmapWidthPx, actualBitmapHeightPx, virtualPage) {
         if (!isPdfPage || actualBitmapWidthPx == 0 || actualBitmapHeightPx == 0) {
             if (pageLinks.isNotEmpty()) pageLinks = emptyList()
             if (standardAnnotScreenRects.isNotEmpty()) standardAnnotScreenRects = emptyList()
+            if (imageScreenRects.isNotEmpty()) imageScreenRects = emptyList()
             return@LaunchedEffect
         }
 
@@ -864,6 +871,7 @@ internal fun PdfPageComposable(
             val allLinks = mutableListOf<PageLink>()
             var finalDisplayList = emptyList<EmbeddedAnnotation>()
             var mappedAnnots = emptyList<Pair<EmbeddedAnnotation, Rect>>()
+            var mappedImageRects = emptyList<android.graphics.Rect>()
             val annotLink = 2
 
             try {
@@ -931,6 +939,39 @@ internal fun PdfPageComposable(
                         Timber.e(e, "Error fetching web links")
                     }
 
+                    // --- Extract Image Bounds ---
+                    try {
+                        val pagePtr = pageWrapper.getNativePointer()
+                        if (pagePtr != 0L) {
+                            val objCount = NativePdfiumBridge.getPageObjectCount(pagePtr)
+                            val imgRects = mutableListOf<android.graphics.Rect>()
+                            val outRect = FloatArray(4)
+
+                            for (i in 0 until objCount) {
+                                if (NativePdfiumBridge.getPageObjectType(pagePtr, i) == 3) { // 3 = FPDF_PAGEOBJ_IMAGE
+                                    if (NativePdfiumBridge.getPageObjectBoundingBox(pagePtr, i, outRect)) {
+                                        val pdfRectF = android.graphics.RectF(
+                                            min(outRect[0], outRect[2]),
+                                            max(outRect[1], outRect[3]),
+                                            max(outRect[0], outRect[2]),
+                                            min(outRect[1], outRect[3])
+                                        )
+                                        val deviceRect = pageWrapper.mapRectToDevice(
+                                            0, 0, actualBitmapWidthPx, actualBitmapHeightPx,
+                                            currentPageRotation, pdfRectF
+                                        )
+                                        if (deviceRect.width() > 0 && deviceRect.height() > 0) {
+                                            imgRects.add(android.graphics.Rect(deviceRect.left, deviceRect.top, deviceRect.right, deviceRect.bottom))
+                                        }
+                                    }
+                                }
+                            }
+                            mappedImageRects = imgRects
+                        }
+                    } catch (e: Exception) {
+                        Timber.tag("PdfImageDebug").e(e, "Error extracting image rects")
+                    }
+
                     // 3. Extract Embedded Annotations
                     try {
                         val pagePtr = pageWrapper.getNativePointer()
@@ -1035,6 +1076,7 @@ internal fun PdfPageComposable(
                 pageLinks = allLinks
                 embeddedAnnotations = finalDisplayList
                 standardAnnotScreenRects = mappedAnnots
+                imageScreenRects = mappedImageRects
             }
         }
     }
@@ -2627,7 +2669,38 @@ internal fun PdfPageComposable(
                         coroutineScope.launch {
                             val startScale = scale
                             val targetScale = if (startScale > 1.1f) 1f else 2.5f
-                            Timber.tag("PdfZoomDebug").i("DoubleTap Triggered: CurrentScale=$startScale, Target=$targetScale")
+
+                            if (com.aryan.reader.BuildConfig.DEBUG && startScale <= 1.1f && bitmapState != null) {
+                                val tapInContentCoords = screenToContentCoordinates(tapOffset)
+
+                                val ratioX = bitmapState!!.width.toFloat() / actualBitmapWidthPx.toFloat()
+                                val ratioY = bitmapState!!.height.toFloat() / actualBitmapHeightPx.toFloat()
+                                val tapXInBitmap = tapInContentCoords.x * ratioX
+                                val tapYInBitmap = tapInContentCoords.y * ratioY
+
+                                val panels = onDetectPanels(bitmapState!!)
+
+                                val tappedPanel = panels.firstOrNull {
+                                    it.contains(tapXInBitmap, tapYInBitmap)
+                                }
+
+                                if (tappedPanel != null) {
+                                    Timber.d("Popup: Cropping panel $tappedPanel")
+                                    val left = tappedPanel.left.coerceAtLeast(0f).toInt()
+                                    val top = tappedPanel.top.coerceAtLeast(0f).toInt()
+                                    val right = tappedPanel.right.coerceAtMost(bitmapState!!.width.toFloat()).toInt()
+                                    val bottom = tappedPanel.bottom.coerceAtMost(bitmapState!!.height.toFloat()).toInt()
+                                    val width = right - left
+                                    val height = bottom - top
+
+                                    if (width > 0 && height > 0) {
+                                        val cropped = android.graphics.Bitmap.createBitmap(bitmapState!!, left, top, width, height)
+                                        onShowPanelPopup(cropped)
+                                        return@launch
+                                    }
+                                }
+                            }
+
                             val startOffset = offset
                             val targetOffsetUnbounded = if (targetScale <= 1.1f) {
                                 Offset.Zero
@@ -2658,10 +2731,10 @@ internal fun PdfPageComposable(
                                 )
                             ) {
                                 val progress = value
-                                scale = lerp(
+                                scale = androidx.compose.ui.util.lerp(
                                     startScale, targetScale, progress
                                 )
-                                offset = lerp(
+                                offset = androidx.compose.ui.geometry.lerp(
                                     startOffset, targetOffset, progress
                                 )
                                 onScaleChanged(scale)
@@ -3555,6 +3628,7 @@ internal fun PdfPageComposable(
                     val stableBitmapState = remember(bitmapState) { StableHolder(bitmapState) }
                     val stableTiles = remember(tiles) { StableHolder(tiles) }
                     val stableColorFilter = remember(colorFilter) { StableHolder(colorFilter) }
+                    val stableImageRects = remember(imageScreenRects) { StableHolder(imageScreenRects) }
 
                     val staticData = remember(
                         stableBitmapState,
@@ -3567,7 +3641,9 @@ internal fun PdfPageComposable(
                         actualBitmapWidthPx,
                         actualBitmapHeightPx,
                         stableColorFilter,
-                        isDarkMode
+                        isDarkMode,
+                        excludeImages,
+                        stableImageRects
                     ) {
                         Timber.tag("PdfDrawPerf").v(
                             "STATIC DATA GENERATED: Scale=$effectiveScale, Tiles=${stableTiles.item.size}"
@@ -3583,7 +3659,9 @@ internal fun PdfPageComposable(
                             targetWidth = actualBitmapWidthPx,
                             targetHeight = actualBitmapHeightPx,
                             colorFilter = stableColorFilter,
-                            isDarkMode = isDarkMode
+                            isDarkMode = isDarkMode,
+                            excludeImages = excludeImages,
+                            imageRects = stableImageRects
                         )
                     }
 
@@ -3659,6 +3737,7 @@ internal fun PdfPageComposable(
                             }
                         },
                         scale = scale,
+                        uiScale = effectiveScale,
                         offset = offset,
                         startHandlePos = startHandleContentPosition.value,
                         endHandlePos = endHandleContentPosition.value,
@@ -3936,11 +4015,11 @@ private fun PdfBitmapLayer(
     targetWidth: Int,
     targetHeight: Int,
     colorFilter: ColorFilter? = null,
-    isDarkMode: Boolean = false
+    isDarkMode: Boolean = false,
+    excludeImages: Boolean = false,
+    imageRects: List<android.graphics.Rect> = emptyList()
 ) {
-    Canvas(modifier = Modifier
-        .fillMaxSize()
-        .graphicsLayer()) {
+    Canvas(modifier = Modifier.fillMaxSize().graphicsLayer()) {
         translate(left = centeringOffsetX, top = centeringOffsetY) {
             clipRect(left = 0f, top = 0f, right = targetWidth.toFloat(), bottom = targetHeight.toFloat()) {
                 if (bitmapState != null && !bitmapState.isRecycled) {
@@ -3959,6 +4038,32 @@ private fun PdfBitmapLayer(
                         filterQuality = androidx.compose.ui.graphics.FilterQuality.High
                     )
 
+                    if (excludeImages && colorFilter != null && imageRects.isNotEmpty()) {
+                        imageRects.forEach { rect ->
+                            val scaleX = bitmapState.width.toFloat() / dstW.toFloat()
+                            val scaleY = bitmapState.height.toFloat() / dstH.toFloat()
+
+                            val srcRectLeft = (rect.left * scaleX).roundToInt().coerceAtLeast(0)
+                            val srcRectTop = (rect.top * scaleY).roundToInt().coerceAtLeast(0)
+                            val srcRectRight = (rect.right * scaleX).roundToInt().coerceAtMost(bitmapState.width)
+                            val srcRectBottom = (rect.bottom * scaleY).roundToInt().coerceAtMost(bitmapState.height)
+
+                            val w = srcRectRight - srcRectLeft
+                            val h = srcRectBottom - srcRectTop
+                            if (w > 0 && h > 0) {
+                                drawImage(
+                                    image = bitmapState.asImageBitmap(),
+                                    srcOffset = IntOffset(srcRectLeft, srcRectTop),
+                                    srcSize = IntSize(w, h),
+                                    dstOffset = IntOffset(rect.left, rect.top),
+                                    dstSize = IntSize(rect.width(), rect.height()),
+                                    colorFilter = null,
+                                    filterQuality = androidx.compose.ui.graphics.FilterQuality.High
+                                )
+                            }
+                        }
+                    }
+
                     val needsTiling = effectiveScale > 1f || targetWidth > 3000 || targetHeight > 3000
                     if (needsTiling) {
                         tiles.forEach { tile ->
@@ -3968,12 +4073,52 @@ private fun PdfBitmapLayer(
                                     srcOffset = IntOffset.Zero,
                                     srcSize = IntSize(tile.bitmap.width, tile.bitmap.height),
                                     dstOffset = IntOffset(tile.renderRect.left, tile.renderRect.top),
-                                    dstSize = IntSize(
-                                        tile.renderRect.width(), tile.renderRect.height()
-                                    ),
+                                    dstSize = IntSize(tile.renderRect.width(), tile.renderRect.height()),
                                     colorFilter = colorFilter,
                                     filterQuality = androidx.compose.ui.graphics.FilterQuality.High
                                 )
+
+                                if (excludeImages && colorFilter != null && imageRects.isNotEmpty()) {
+                                    imageRects.forEach { imgRect ->
+                                        val scaledImgRectLeft = (imgRect.left * effectiveScale).roundToInt()
+                                        val scaledImgRectTop = (imgRect.top * effectiveScale).roundToInt()
+                                        val scaledImgRectRight = (imgRect.right * effectiveScale).roundToInt()
+                                        val scaledImgRectBottom = (imgRect.bottom * effectiveScale).roundToInt()
+
+                                        val intersectLeft = max(scaledImgRectLeft, tile.renderRect.left)
+                                        val intersectTop = max(scaledImgRectTop, tile.renderRect.top)
+                                        val intersectRight = min(scaledImgRectRight, tile.renderRect.right)
+                                        val intersectBottom = min(scaledImgRectBottom, tile.renderRect.bottom)
+
+                                        val iw = intersectRight - intersectLeft
+                                        val ih = intersectBottom - intersectTop
+
+                                        if (iw > 0 && ih > 0) {
+                                            val scaleXBmp = tile.bitmap.width.toFloat() / tile.renderRect.width()
+                                            val scaleYBmp = tile.bitmap.height.toFloat() / tile.renderRect.height()
+
+                                            val srcLeft = ((intersectLeft - tile.renderRect.left) * scaleXBmp).roundToInt()
+                                            val srcTop = ((intersectTop - tile.renderRect.top) * scaleYBmp).roundToInt()
+                                            val srcRight = ((intersectRight - tile.renderRect.left) * scaleXBmp).roundToInt()
+                                            val srcBottom = ((intersectBottom - tile.renderRect.top) * scaleYBmp).roundToInt()
+
+                                            val srcW = srcRight - srcLeft
+                                            val srcH = srcBottom - srcTop
+
+                                            if (srcW > 0 && srcH > 0) {
+                                                drawImage(
+                                                    image = tile.bitmap.asImageBitmap(),
+                                                    srcOffset = IntOffset(srcLeft, srcTop),
+                                                    srcSize = IntSize(srcW, srcH),
+                                                    dstOffset = IntOffset(intersectLeft, intersectTop),
+                                                    dstSize = IntSize(iw, ih),
+                                                    colorFilter = null,
+                                                    filterQuality = androidx.compose.ui.graphics.FilterQuality.High
+                                                )
+                                            }
+                                        }
+                                    }
+                                }
                             }
                         }
                     }
@@ -4497,7 +4642,9 @@ private fun PdfPageStaticLayer(data: PageStaticData) {
         targetWidth = data.targetWidth,
         targetHeight = data.targetHeight,
         colorFilter = data.colorFilter.item,
-        isDarkMode = data.isDarkMode
+        isDarkMode = data.isDarkMode,
+        excludeImages = data.excludeImages,
+        imageRects = data.imageRects.item
     )
 }
 
@@ -4571,6 +4718,7 @@ private fun PdfPageRenderer(
     drawingState: PdfDrawingState?,
     onCanvasSizeChanged: (Float, Float) -> Unit,
     scale: Float,
+    uiScale: Float,
     offset: Offset,
     startHandlePos: Offset?,
     endHandlePos: Offset?,
@@ -4697,6 +4845,12 @@ private fun PdfPageRenderer(
                     }
                 }
 
+                if (textBoxes.isNotEmpty()) {
+                    androidx.compose.runtime.SideEffect {
+                        Timber.tag("PdfTextBoxDebug").d("PdfPageRenderer parent graphicsLayer applied | scale=$scale | offset=$offset | Centering: X=${staticData.centeringOffsetX}, Y=${staticData.centeringOffsetY}")
+                    }
+                }
+
                 textBoxes.forEach { box ->
                     val isDraggingThisBox = (box.id == draggingBoxId)
                     val boxAlpha = if (isDraggingThisBox) 0f else 1f
@@ -4707,17 +4861,27 @@ private fun PdfPageRenderer(
                             isSelected = (box.id == selectedTextBoxId),
                             isEditMode = isEditMode,
                             isDarkMode = staticData.isDarkMode,
+                            scale = uiScale,
                             pageWidthPx = staticData.targetWidth.toFloat(),
                             pageHeightPx = staticData.targetHeight.toFloat(),
                             handlePosition = HandlePosition.AUTO,
                             onBoundsChanged = { newBounds ->
+                                Timber.tag("PdfTextBoxDebug").v("PdfPageRenderer onBoundsChanged [ID: ${box.id}] bounds=$newBounds draggingBoxId=$draggingBoxId")
+                                if (draggingBoxId != box.id) {
                                     onTextBoxChange(box.copy(relativeBounds = newBounds))
+                                } else {
+                                    Timber.tag("PdfTextBoxDebug").d("PdfPageRenderer onBoundsChanged IGNORED because box[ID: ${box.id}] is being dragged globally")
+                                }
                             },
                             onTextChanged = { newText ->
                                 onTextBoxChange(box.copy(text = newText))
                             },
-                            onSelect = { onTextBoxSelect(box.id) },
+                            onSelect = {
+                                Timber.tag("PdfTextBoxDebug").d("PdfPageRenderer onSelect propagated[ID: ${box.id}]")
+                                onTextBoxSelect(box.id)
+                            },
                             onDragStart = { touchOffset ->
+                                Timber.tag("PdfTextBoxDebug").d("PdfPageRenderer onDragStart[ID: ${box.id}] isVerticalScroll=$isVerticalScroll | offset=$touchOffset")
                                 if (isVerticalScroll) {
                                     val topLeft = Offset(
                                         box.relativeBounds.left * staticData.targetWidth,
@@ -4729,10 +4893,12 @@ private fun PdfPageRenderer(
                                 }
                             },
                             onDrag = { delta, currentBounds ->
+                                Timber.tag("PdfTextBoxDebug").v("PdfPageRenderer onDrag [ID: ${box.id}] delta=$delta currentBounds=$currentBounds scale=$scale")
                                 if (isVerticalScroll) {
                                     onTextBoxDrag(delta)
                                 } else {
-                                    onTextBoxDrag(delta)
+                                    val scaledDelta = delta * scale
+                                    onTextBoxDrag(scaledDelta)
 
                                     val width = staticData.targetWidth
                                     val edgeThreshold = 60f
@@ -4746,9 +4912,11 @@ private fun PdfPageRenderer(
                                 }
                             },
                             onDragEnd = {
+                                Timber.tag("PdfTextBoxDebug").d("PdfPageRenderer onDragEnd[ID: ${box.id}]")
                                 onTextBoxDragEnd()
                             },
                             onDragCancel = {
+                                Timber.tag("PdfTextBoxDebug").d("PdfPageRenderer onDragCancel [ID: ${box.id}]")
                                 onTextBoxDragEnd()
                             },
                             modifier = Modifier

app/src/main/java/com/aryan/reader/pdf/PdfPreferences.kt

@@ -0,0 +1,373 @@
+package com.aryan.reader.pdf
+
+import android.content.Context
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.toArgb
+import androidx.core.content.edit
+import com.aryan.reader.BuildConfig
+import com.aryan.reader.ReaderTheme
+import com.aryan.reader.epubreader.SystemUiMode
+
+internal const val VERTICAL_SCROLL_TAG = "PdfVerticalScroll"
+internal const val SETTINGS_PREFS_NAME = "epub_reader_settings"
+internal const val TTS_MODE_KEY = "tts_mode"
+internal const val DISPLAY_MODE_KEY = "pdf_display_mode"
+internal const val PDF_DARK_MODE_KEY = "pdf_dark_mode"
+internal const val OCR_LANGUAGE_KEY = "ocr_language_key"
+internal const val OCR_LANGUAGE_SELECTED_KEY = "ocr_language_selected_key"
+internal const val DOCK_LOCATION_KEY = "dock_location"
+internal const val DOCK_OFFSET_X_KEY = "dock_offset_x"
+internal const val DOCK_OFFSET_Y_KEY = "dock_offset_y"
+internal const val PDF_AUTO_SCROLL_SPEED_KEY = "pdf_auto_scroll_speed"
+internal const val PDF_AUTO_SCROLL_USE_SLIDER_KEY = "pdf_auto_scroll_use_slider"
+internal const val PDF_AUTO_SCROLL_MIN_SPEED_KEY = "pdf_auto_scroll_min_speed"
+internal const val PDF_AUTO_SCROLL_MAX_SPEED_KEY = "pdf_auto_scroll_max_speed"
+internal const val STYLUS_ONLY_MODE_KEY = "stylus_only_mode"
+
+private const val PDF_AUTO_SCROLL_IS_LOCAL_PREFIX = "pdf_as_local_"
+private const val PDF_AUTO_SCROLL_LOCAL_SPEED_PREFIX = "pdf_as_local_speed_"
+private const val PDF_AUTO_SCROLL_LOCAL_MIN_PREFIX = "pdf_as_local_min_"
+private const val PDF_AUTO_SCROLL_LOCAL_MAX_PREFIX = "pdf_as_local_max_"
+private const val PDF_SCROLL_LOCKED_PREFIX = "pdf_sl_local_"
+internal const val PDF_FULL_SCREEN_PREFIX = "pdf_fs_local_"
+private const val PDF_MUSICIAN_MODE_KEY = "pdf_musician_mode_enabled"
+private const val PREF_USE_ONLINE_DICT = "use_online_dictionary"
+private const val PREF_EXTERNAL_DICT_PKG = "external_dictionary_package"
+private const val PREF_EXTERNAL_TRANSLATE_PKG = "external_translate_package"
+private const val PREF_EXTERNAL_SEARCH_PKG = "external_search_package"
+private const val PDF_THEME_KEY = "pdf_reader_theme"
+private const val PDF_KEEP_SCREEN_ON_KEY = "pdf_keep_screen_on_enabled"
+private const val PDF_HIDDEN_TOOLS_KEY = "pdf_hidden_tools"
+private const val PDF_SYSTEM_UI_MODE_KEY = "pdf_system_ui_mode"
+internal const val PDF_LAYOUT_DEBUG_TAG = "PdfLayoutDebug"
+
+enum class PdfReaderTool(val title: String, val category: String) {
+    DICTIONARY("External Apps", "Top Bar"),
+    THEME("Theme Settings", "Top Bar"),
+    LOCK_PANNING("Lock Panning", "Top Bar"),
+    VISUAL_OPTIONS("Visual Options", "Overflow Menu"),
+    FULL_SCREEN("Full Screen", "Top Bar"),
+    SLIDER("Navigation Slider", "Bottom Bar"),
+    TOC("Sidebar", "Bottom Bar"),
+    SEARCH("Search", "Bottom Bar"),
+    HIGHLIGHT_ALL("Highlight selectable text", "Bottom Bar"),
+    AI_FEATURES("AI Features", "Bottom Bar"),
+    EDIT_MODE("Edit Mode", "Bottom Bar"),
+    TTS_CONTROLS("TTS Controls", "Bottom Bar"),
+    OCR_LANGUAGE("OCR Language", "Overflow Menu"),
+    READING_MODE("Reading Mode", "Overflow Menu"),
+    KEEP_SCREEN_ON("Keep Screen On", "Overflow Menu"),
+    AUTO_SCROLL("Auto Scroll", "Overflow Menu"),
+    TTS_SETTINGS("TTS Voice Settings", "Overflow Menu"),
+    BOOKMARK("Bookmark", "Overflow Menu"),
+    PAGE_MANAGEMENT("Page Management", "Overflow Menu"),
+    REFLOW("Text View (Reflow)", "Overflow Menu"),
+    SHARE("Share", "Overflow Menu"),
+    SAVE_COPY("Save Copy", "Overflow Menu"),
+    PRINT("Print", "Overflow Menu")
+}
+
+val PdfBuiltInThemes = listOf(
+    ReaderTheme("no_theme", "No Theme", Color.Unspecified, Color.Unspecified, false),
+    ReaderTheme("reverse", "Reverse", Color.Black, Color.White, true),
+    ReaderTheme("light", "Light", Color(0xFFFFFFFF), Color(0xFF000000), false),
+    ReaderTheme("dark", "Dark", Color(0xFF121212), Color(0xFFE0E0E0), true),
+    ReaderTheme("sepia", "Sepia", Color(0xFFFBF0D9), Color(0xFF5F4B32), false),
+    ReaderTheme("slate", "Slate", Color(0xFF2E3440), Color(0xFFECEFF4), true),
+    ReaderTheme("oled", "OLED", Color(0xFF000000), Color(0xFFB0B0B0), true)
+)
+
+internal fun loadPdfHiddenTools(context: Context): Set<String> {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getStringSet(PDF_HIDDEN_TOOLS_KEY, emptySet()) ?: emptySet()
+}
+
+internal fun savePdfHiddenTools(context: Context, hiddenTools: Set<String>) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putStringSet(PDF_HIDDEN_TOOLS_KEY, hiddenTools) }
+}
+
+internal fun loadCustomHighlightColors(context: Context): Map<PdfHighlightColor, Color> {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return PdfHighlightColor.entries.associateWith {
+        val defaultArgb = it.color.toArgb()
+        val savedArgb = prefs.getInt("custom_highlight_${it.name}", defaultArgb)
+        Color(savedArgb)
+    }
+}
+
+internal fun saveCustomHighlightColors(context: Context, colors: Map<PdfHighlightColor, Color>) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit {
+        colors.forEach { (colorEnum, color) ->
+            putInt("custom_highlight_${colorEnum.name}", color.toArgb())
+        }
+    }
+}
+
+internal fun saveKeepScreenOn(context: Context, isEnabled: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PDF_KEEP_SCREEN_ON_KEY, isEnabled) }
+}
+
+internal fun loadKeepScreenOn(context: Context): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PDF_KEEP_SCREEN_ON_KEY, false)
+}
+
+internal fun savePdfSystemUiMode(context: Context, mode: SystemUiMode) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putInt(PDF_SYSTEM_UI_MODE_KEY, mode.id) }
+}
+
+internal fun loadPdfSystemUiMode(context: Context): SystemUiMode {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    val id = prefs.getInt(PDF_SYSTEM_UI_MODE_KEY, SystemUiMode.SYNC.id)
+    return SystemUiMode.entries.find { it.id == id } ?: SystemUiMode.SYNC
+}
+
+internal fun savePdfThemeId(context: Context, themeId: String) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putString(PDF_THEME_KEY, themeId) }
+}
+
+internal fun loadPdfThemeId(context: Context): String {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getString(PDF_THEME_KEY, "no_theme") ?: "no_theme"
+}
+
+internal fun loadUseOnlineDict(context: Context): Boolean {
+    @Suppress("KotlinConstantConditions") if (BuildConfig.FLAVOR == "oss") return false
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PREF_USE_ONLINE_DICT, true)
+}
+
+internal fun saveUseOnlineDict(context: Context, useOnline: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PREF_USE_ONLINE_DICT, useOnline) }
+}
+
+internal fun loadExternalDictPackage(context: Context): String? {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getString(PREF_EXTERNAL_DICT_PKG, null)
+}
+
+internal fun saveExternalDictPackage(context: Context, packageName: String) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putString(PREF_EXTERNAL_DICT_PKG, packageName) }
+}
+
+internal fun loadExternalTranslatePackage(context: Context): String? {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getString(PREF_EXTERNAL_TRANSLATE_PKG, null)
+}
+
+internal fun saveExternalTranslatePackage(context: Context, packageName: String) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putString(PREF_EXTERNAL_TRANSLATE_PKG, packageName) }
+}
+
+internal fun loadExternalSearchPackage(context: Context): String? {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getString(PREF_EXTERNAL_SEARCH_PKG, null)
+}
+
+internal fun saveExternalSearchPackage(context: Context, packageName: String) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putString(PREF_EXTERNAL_SEARCH_PKG, packageName) }
+}
+
+internal fun savePdfMusicianMode(context: Context, isEnabled: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PDF_MUSICIAN_MODE_KEY, isEnabled) }
+}
+
+internal fun loadPdfMusicianMode(context: Context): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PDF_MUSICIAN_MODE_KEY, false)
+}
+
+internal fun savePdfScrollLocked(context: Context, bookId: String, isLocked: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PDF_SCROLL_LOCKED_PREFIX + bookId, isLocked) }
+}
+
+internal fun loadPdfScrollLocked(context: Context, bookId: String): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PDF_SCROLL_LOCKED_PREFIX + bookId, false)
+}
+
+internal fun savePdfAutoScrollLocalMode(context: Context, bookId: String, isLocal: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PDF_AUTO_SCROLL_IS_LOCAL_PREFIX + bookId, isLocal) }
+}
+
+internal fun loadPdfAutoScrollLocalMode(context: Context, bookId: String): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PDF_AUTO_SCROLL_IS_LOCAL_PREFIX + bookId, false)
+}
+
+internal fun savePdfAutoScrollLocalSettings(context: Context, bookId: String, speed: Float, min: Float, max: Float) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit {
+        putFloat(PDF_AUTO_SCROLL_LOCAL_SPEED_PREFIX + bookId, speed)
+        putFloat(PDF_AUTO_SCROLL_LOCAL_MIN_PREFIX + bookId, min)
+        putFloat(PDF_AUTO_SCROLL_LOCAL_MAX_PREFIX + bookId, max)
+    }
+}
+
+internal fun loadPdfAutoScrollLocalSettings(context: Context, bookId: String): Triple<Float, Float, Float>? {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    if (!prefs.contains(PDF_AUTO_SCROLL_LOCAL_SPEED_PREFIX + bookId)) return null
+
+    val speed = prefs.getFloat(PDF_AUTO_SCROLL_LOCAL_SPEED_PREFIX + bookId, 3.0f)
+    val min = prefs.getFloat(PDF_AUTO_SCROLL_LOCAL_MIN_PREFIX + bookId, 0.1f)
+    val max = prefs.getFloat(PDF_AUTO_SCROLL_LOCAL_MAX_PREFIX + bookId, 10.0f)
+    return Triple(speed, min, max)
+}
+
+internal fun savePdfAutoScrollMinSpeed(context: Context, speed: Float) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putFloat(PDF_AUTO_SCROLL_MIN_SPEED_KEY, speed) }
+}
+
+internal fun saveStylusOnlyMode(context: Context, isEnabled: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(STYLUS_ONLY_MODE_KEY, isEnabled) }
+}
+
+internal fun loadStylusOnlyMode(context: Context): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(STYLUS_ONLY_MODE_KEY, false)
+}
+
+internal fun loadPdfAutoScrollMinSpeed(context: Context): Float {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getFloat(PDF_AUTO_SCROLL_MIN_SPEED_KEY, 0.1f)
+}
+
+internal fun savePdfAutoScrollMaxSpeed(context: Context, speed: Float) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putFloat(PDF_AUTO_SCROLL_MAX_SPEED_KEY, speed) }
+}
+
+internal fun loadPdfAutoScrollMaxSpeed(context: Context): Float {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getFloat(PDF_AUTO_SCROLL_MAX_SPEED_KEY, 10.0f)
+}
+
+internal fun savePdfAutoScrollUseSlider(context: Context, useSlider: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PDF_AUTO_SCROLL_USE_SLIDER_KEY, useSlider) }
+}
+
+internal fun loadPdfAutoScrollUseSlider(context: Context): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PDF_AUTO_SCROLL_USE_SLIDER_KEY, false)
+}
+
+internal fun savePdfAutoScrollSpeed(context: Context, speed: Float) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putFloat(PDF_AUTO_SCROLL_SPEED_KEY, speed) }
+}
+
+internal fun loadPdfAutoScrollSpeed(context: Context): Float {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getFloat(PDF_AUTO_SCROLL_SPEED_KEY, 3.0f)
+}
+
+internal fun savePdfLockedState(context: Context, bookId: String, scale: Float, offsetX: Float, offsetY: Float) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit {
+        putFloat("pdf_locked_scale_$bookId", scale)
+        putFloat("pdf_locked_offset_x_$bookId", offsetX)
+        putFloat("pdf_locked_offset_y_$bookId", offsetY)
+    }
+}
+
+internal fun loadPdfLockedState(context: Context, bookId: String): Triple<Float, Float, Float>? {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    if (!prefs.contains("pdf_locked_scale_$bookId")) return null
+    return Triple(
+        prefs.getFloat("pdf_locked_scale_$bookId", 1f),
+        prefs.getFloat("pdf_locked_offset_x_$bookId", 0f),
+        prefs.getFloat("pdf_locked_offset_y_$bookId", 0f)
+    )
+}
+
+internal fun saveOcrLanguage(context: Context, language: OcrLanguage) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit {
+        putString(OCR_LANGUAGE_KEY, language.name)
+        putBoolean(OCR_LANGUAGE_SELECTED_KEY, true)
+    }
+}
+
+internal fun loadOcrLanguage(context: Context): OcrLanguage {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    val name = prefs.getString(OCR_LANGUAGE_KEY, OcrLanguage.LATIN.name)
+    return try {
+        OcrLanguage.valueOf(name ?: OcrLanguage.LATIN.name)
+    } catch (_: Exception) {
+        OcrLanguage.LATIN
+    }
+}
+
+internal fun hasUserSelectedOcrLanguage(context: Context): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(OCR_LANGUAGE_SELECTED_KEY, false)
+}
+
+internal fun saveDockState(context: Context, location: DockLocation, offset: Offset) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit {
+        putString(DOCK_LOCATION_KEY, location.name)
+        putFloat(DOCK_OFFSET_X_KEY, offset.x)
+        putFloat(DOCK_OFFSET_Y_KEY, offset.y)
+    }
+}
+
+internal fun loadDockState(context: Context): Pair<DockLocation, Offset> {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    val locName = prefs.getString(DOCK_LOCATION_KEY, DockLocation.BOTTOM.name)
+    val location = try {
+        DockLocation.valueOf(locName ?: DockLocation.BOTTOM.name)
+    } catch (_: Exception) {
+        DockLocation.BOTTOM
+    }
+
+    val x = prefs.getFloat(DOCK_OFFSET_X_KEY, 0f)
+    val y = prefs.getFloat(DOCK_OFFSET_Y_KEY, 0f)
+
+    return location to Offset(x, y)
+}
+
+internal fun saveDisplayMode(context: Context, mode: DisplayMode) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putString(DISPLAY_MODE_KEY, mode.name) }
+}
+
+internal fun loadDisplayMode(context: Context): DisplayMode {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    val modeName = prefs.getString(DISPLAY_MODE_KEY, DisplayMode.VERTICAL_SCROLL.name)
+    return try {
+        DisplayMode.valueOf(modeName ?: DisplayMode.VERTICAL_SCROLL.name)
+    } catch (_: IllegalArgumentException) {
+        DisplayMode.VERTICAL_SCROLL
+    }
+}
+
+internal data class TtsPageData(
+    val pageIndex: Int, val processedText: ProcessedText, val fromOcr: Boolean
+)
+
+internal fun savePdfDarkMode(context: Context, isDark: Boolean) {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    prefs.edit { putBoolean(PDF_DARK_MODE_KEY, isDark) }
+}
+
+internal fun loadPdfDarkMode(context: Context): Boolean {
+    val prefs = context.getSharedPreferences(SETTINGS_PREFS_NAME, Context.MODE_PRIVATE)
+    return prefs.getBoolean(PDF_DARK_MODE_KEY, false)
+}

app/src/main/java/com/aryan/reader/pdf/PdfSearchUI.kt

@@ -0,0 +1,236 @@
+package com.aryan.reader.pdf
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.itemsIndexed
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.KeyboardArrowDown
+import androidx.compose.material.icons.filled.KeyboardArrowUp
+import androidx.compose.material.icons.filled.Visibility
+import androidx.compose.material.icons.filled.VisibilityOff
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.HorizontalDivider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.ListItem
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.shadow
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import androidx.paging.LoadState
+import androidx.paging.compose.LazyPagingItems
+import androidx.paging.compose.itemContentType
+import androidx.paging.compose.itemKey
+import com.aryan.reader.R
+import com.aryan.reader.SearchResult
+
+@Composable
+internal fun SearchNavigationPill(
+    text: String,
+    mode: SearchHighlightMode,
+    onToggleMode: () -> Unit,
+    onPrev: () -> Unit,
+    onNext: () -> Unit,
+    onTextClick: () -> Unit,
+    isPrevEnabled: Boolean = true,
+    isNextEnabled: Boolean = true
+) {
+    Surface(
+        shape = RoundedCornerShape(50),
+        color = MaterialTheme.colorScheme.surfaceContainerHighest,
+        contentColor = MaterialTheme.colorScheme.onSurface,
+        modifier = Modifier
+            .shadow(6.dp, RoundedCornerShape(50))
+            .height(56.dp)
+    ) {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            horizontalArrangement = Arrangement.spacedBy(4.dp),
+            modifier = Modifier.padding(horizontal = 8.dp)
+        ) {
+            // Toggle Mode
+            IconButton(onClick = onToggleMode) {
+                Icon(
+                    imageVector = if (mode == SearchHighlightMode.ALL) Icons.Default.Visibility
+                    else Icons.Default.VisibilityOff,
+                    contentDescription = "Toggle Highlights",
+                    tint = if (mode == SearchHighlightMode.ALL) MaterialTheme.colorScheme.primary
+                    else MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+
+            // Vertical Divider
+            Box(
+                modifier = Modifier
+                    .width(1.dp)
+                    .height(24.dp)
+                    .background(
+                        MaterialTheme.colorScheme.onSurfaceVariant.copy(
+                            alpha = 0.3f
+                        )
+                    )
+            )
+
+            // Prev
+            IconButton(onClick = onPrev, enabled = isPrevEnabled) {
+                Icon(
+                    imageVector = Icons.Default.KeyboardArrowUp,
+                    contentDescription = "Previous",
+                    tint = if (isPrevEnabled) MaterialTheme.colorScheme.onSurface
+                    else MaterialTheme.colorScheme.onSurface.copy(alpha = 0.38f)
+                )
+            }
+
+            // Counter/Text
+            Box(
+                modifier = Modifier
+                    .clickable(
+                        interactionSource = remember { MutableInteractionSource() },
+                        indication = null,
+                        onClick = onTextClick
+                    )
+                    .padding(horizontal = 8.dp)
+            ) {
+                Text(
+                    text = text,
+                    style = MaterialTheme.typography.labelLarge,
+                    fontWeight = FontWeight.Bold
+                )
+            }
+
+            // Next
+            IconButton(onClick = onNext, enabled = isNextEnabled) {
+                Icon(
+                    imageVector = Icons.Default.KeyboardArrowDown,
+                    contentDescription = "Next",
+                    tint = if (isNextEnabled) MaterialTheme.colorScheme.onSurface
+                    else MaterialTheme.colorScheme.onSurface.copy(alpha = 0.38f)
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun PdfSearchResultsPanel(
+    lazyResults: LazyPagingItems<SearchResult>,
+    totalPageCount: Int,
+    onResultClick: (SearchResult) -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Surface(modifier = modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {
+        if (lazyResults.itemCount == 0 && lazyResults.loadState.refresh !is LoadState.Loading) {
+            Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                Text("No results found.", style = MaterialTheme.typography.bodyLarge)
+            }
+        } else {
+            Column {
+                Text(
+                    text = stringResource(R.string.msg_results_found_pages),
+                    style = MaterialTheme.typography.titleSmall,
+                    modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp)
+                )
+                HorizontalDivider()
+
+                LazyColumn(modifier = Modifier.testTag("SearchResultsList")) {
+                    items(count = lazyResults.itemCount, key = lazyResults.itemKey {
+                        "${it.locationInSource}_${it.occurrenceIndexInLocation}"
+                    }, contentType = lazyResults.itemContentType { "SearchResult" }) { index ->
+                        val result = lazyResults[index]
+                        if (result != null) {
+                            ListItem(
+                                headlineContent = {
+                                    Text(
+                                        result.locationTitle,
+                                        maxLines = 1,
+                                        overflow = TextOverflow.Ellipsis
+                                    )
+                                }, supportingContent = {
+                                    Text(
+                                        result.snippet, style = MaterialTheme.typography.bodyMedium
+                                    )
+                                }, modifier = Modifier
+                                    .testTag(
+                                        "SearchResultItem_${result.locationInSource}"
+                                    )
+                                    .clickable { onResultClick(result) })
+                            HorizontalDivider()
+                        }
+                    }
+                }
+            }
+        }
+
+        if (lazyResults.loadState.refresh is LoadState.Loading) {
+            Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                CircularProgressIndicator()
+            }
+        }
+    }
+}
+
+@Composable
+fun PdfSearchResultsList(
+    results: List<SearchResult>,
+    onResultClick: (SearchResult) -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Surface(modifier = modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background) {
+        if (results.isEmpty()) {
+            Box(modifier = Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
+                Text(stringResource(R.string.search_no_results_simple), style = MaterialTheme.typography.bodyLarge)
+            }
+        } else {
+            Column {
+                Text(
+                    text = "${results.size} matches found",
+                    style = MaterialTheme.typography.titleSmall,
+                    modifier = Modifier.padding(horizontal = 16.dp, vertical = 12.dp)
+                )
+                HorizontalDivider()
+
+                LazyColumn(modifier = Modifier.testTag("SearchResultsList")) {
+                    itemsIndexed(results) { _, result ->
+                        ListItem(
+                            headlineContent = {
+                                Text(
+                                    result.locationTitle,
+                                    maxLines = 1,
+                                    overflow = TextOverflow.Ellipsis
+                                )
+                            }, supportingContent = {
+                                Text(
+                                    result.snippet, style = MaterialTheme.typography.bodyMedium
+                                )
+                            }, modifier = Modifier
+                                .testTag(
+                                    "SearchResultItem_${result.locationInSource}"
+                                )
+                                .clickable { onResultClick(result) })
+                        HorizontalDivider()
+                    }
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfSettingsSheets.kt

@@ -0,0 +1,153 @@
+@file:kotlin.OptIn(ExperimentalMaterial3Api::class)
+
+package com.aryan.reader.pdf
+
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.navigationBars
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Close
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ModalBottomSheet
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.material3.rememberModalBottomSheetState
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import com.aryan.reader.R
+import com.aryan.reader.epubreader.OptionSegmentedControl
+import com.aryan.reader.epubreader.SystemUiMode
+
+@Composable
+fun PdfCustomizeToolsSheet(
+    hiddenTools: Set<String>,
+    onUpdate: (Set<String>) -> Unit,
+    onDismiss: () -> Unit
+) {
+    ModalBottomSheet(
+        onDismissRequest = onDismiss,
+        contentWindowInsets = { WindowInsets.navigationBars }
+    ) {
+        Column(modifier = Modifier.padding(horizontal = 24.dp).padding(bottom = 24.dp)) {
+            Text(
+                text = stringResource(R.string.title_customize_toolbar),
+                style = MaterialTheme.typography.headlineSmall,
+                fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.onSurface
+            )
+            Spacer(modifier = Modifier.height(8.dp))
+            Text(
+                text = stringResource(R.string.desc_customize_toolbar),
+                style = MaterialTheme.typography.bodyMedium,
+                color = MaterialTheme.colorScheme.onSurfaceVariant
+            )
+            Spacer(modifier = Modifier.height(16.dp))
+
+            LazyColumn(modifier = Modifier.fillMaxWidth()) {
+                PdfReaderTool.entries.groupBy { it.category }.forEach { (category, tools) ->
+                    item {
+                        Text(
+                            text = category,
+                            style = MaterialTheme.typography.labelMedium,
+                            color = MaterialTheme.colorScheme.primary,
+                            modifier = Modifier.padding(top = 16.dp, bottom = 8.dp)
+                        )
+                    }
+                    items(tools) { tool ->
+                        Row(
+                            modifier = Modifier
+                                .fillMaxWidth()
+                                .clip(RoundedCornerShape(8.dp))
+                                .clickable {
+                                    val newSet = hiddenTools.toMutableSet()
+                                    if (newSet.contains(tool.name)) newSet.remove(tool.name)
+                                    else newSet.add(tool.name)
+                                    onUpdate(newSet)
+                                }
+                                .padding(vertical = 12.dp, horizontal = 8.dp),
+                            verticalAlignment = Alignment.CenterVertically,
+                            horizontalArrangement = Arrangement.SpaceBetween
+                        ) {
+                            Text(
+                                text = tool.title,
+                                style = MaterialTheme.typography.bodyLarge,
+                                color = MaterialTheme.colorScheme.onSurface
+                            )
+                            Switch(
+                                checked = !hiddenTools.contains(tool.name),
+                                onCheckedChange = { isVisible ->
+                                    val newSet = hiddenTools.toMutableSet()
+                                    if (isVisible) newSet.remove(tool.name) else newSet.add(tool.name)
+                                    onUpdate(newSet)
+                                }
+                            )
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun PdfVisualOptionsSheet(
+    systemUiMode: SystemUiMode,
+    onSystemUiModeChange: (SystemUiMode) -> Unit,
+    onDismiss: () -> Unit
+) {
+    val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
+    ModalBottomSheet(
+        onDismissRequest = onDismiss,
+        sheetState = sheetState,
+        containerColor = MaterialTheme.colorScheme.surface,
+        contentWindowInsets = { WindowInsets.navigationBars }
+    ) {
+        Column(
+            modifier = Modifier
+                .fillMaxWidth()
+                .padding(horizontal = 24.dp, vertical = 8.dp)
+                .padding(bottom = 32.dp)
+        ) {
+            Row(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalArrangement = Arrangement.SpaceBetween,
+                verticalAlignment = Alignment.CenterVertically
+            ) {
+                Text(stringResource(R.string.menu_visual_options), style = MaterialTheme.typography.titleLarge, fontWeight = FontWeight.Bold)
+                IconButton(onClick = onDismiss) {
+                    Icon(Icons.Default.Close, contentDescription = stringResource(R.string.action_close))
+                }
+            }
+            Spacer(modifier = Modifier.height(16.dp))
+
+            Text(stringResource(R.string.visual_options_system_ui), style = MaterialTheme.typography.titleMedium)
+            Text(stringResource(R.string.visual_options_system_ui_desc), style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.onSurfaceVariant)
+            Spacer(modifier = Modifier.height(12.dp))
+
+            OptionSegmentedControl(
+                options = SystemUiMode.entries,
+                selectedOption = systemUiMode,
+                onOptionSelected = onSystemUiModeChange,
+                getLabel = { it.title }
+            )
+        }
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfTextBox.kt

@@ -21,7 +21,8 @@ package com.aryan.reader.pdf
 
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
-import androidx.compose.foundation.gestures.detectDragGestures
+import androidx.compose.foundation.gestures.awaitEachGesture
+import androidx.compose.foundation.gestures.awaitFirstDown
 import androidx.compose.foundation.gestures.detectTapGestures
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
@@ -52,7 +53,12 @@ import androidx.compose.ui.geometry.Offset
 import androidx.compose.ui.geometry.Rect
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.SolidColor
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.input.pointer.PointerInputChange
+import androidx.compose.ui.input.pointer.PointerInputScope
+import androidx.compose.ui.input.pointer.changedToUp
 import androidx.compose.ui.input.pointer.pointerInput
+import androidx.compose.ui.input.pointer.positionChanged
 import androidx.compose.ui.platform.LocalDensity
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.TextStyle
@@ -78,6 +84,49 @@ enum class HandlePosition {
     TOP, BOTTOM, AUTO
 }
 
+// Eagerly consumes pointer events so parent scaled pan/zoom gestures don't intercept it
+suspend fun PointerInputScope.detectEagerDragGestures(
+    onDragStart: (Offset) -> Unit,
+    onDragEnd: () -> Unit,
+    onDragCancel: () -> Unit,
+    onDrag: (PointerInputChange, Offset) -> Unit
+) {
+    awaitEachGesture {
+        var dragStarted = false
+        try {
+            val down = awaitFirstDown(requireUnconsumed = false)
+            down.consume() // Consume immediately
+            onDragStart(down.position)
+            dragStarted = true
+            val pointerId = down.id
+            var canceled = false
+            while (true) {
+                val event = awaitPointerEvent()
+                val change = event.changes.firstOrNull { it.id == pointerId }
+                if (change == null) {
+                    canceled = true
+                    break
+                }
+                if (change.changedToUp()) {
+                    change.consume()
+                    break
+                }
+                if (change.positionChanged()) {
+                    val dragAmount = change.position - change.previousPosition
+                    change.consume()
+                    onDrag(change, dragAmount)
+                }
+            }
+            if (canceled) onDragCancel() else onDragEnd()
+            dragStarted = false
+        } finally {
+            if (dragStarted) {
+                onDragCancel()
+            }
+        }
+    }
+}
+
 @Composable
 fun ResizableTextBox(
     box: PdfTextBox,
@@ -86,6 +135,7 @@ fun ResizableTextBox(
     isDarkMode: Boolean,
     pageWidthPx: Float,
     pageHeightPx: Float,
+    scale: Float = 1f,
     onBoundsChanged: (Rect) -> Unit,
     onTextChanged: (String) -> Unit,
     onSelect: () -> Unit,
@@ -101,8 +151,9 @@ fun ResizableTextBox(
     val density = LocalDensity.current
     val focusRequester = remember { FocusRequester() }
 
-    val handleSize = 10.dp
-    val handleTouchSize = 40.dp
+    // Counter-scale fixed sizes so they render proportionally regardless of the zoom level
+    val handleSize = (10f / scale).dp
+    val handleTouchSize = (40f / scale).dp
     val handleSizePx = with(density) { handleSize.toPx() }
     val halfHandlePx = handleSizePx / 2f
     val handleTouchSizePx = with(density) { handleTouchSize.toPx() }
@@ -126,7 +177,9 @@ fun ResizableTextBox(
             }
         }
     }
-
+    androidx.compose.runtime.SideEffect {
+        Timber.tag("PdfTextBoxDebug").v("ResizableTextBox Recompose [ID: ${box.id}] | isSelected=$isSelected | scale=$scale | pagePx=${pageWidthPx}x${pageHeightPx} | bounds=${box.relativeBounds}")
+    }
     var currentRectPx by remember {
         mutableStateOf(
             Rect(
@@ -152,6 +205,8 @@ fun ResizableTextBox(
                 right = box.relativeBounds.right * pageWidthPx,
                 bottom = box.relativeBounds.bottom * pageHeightPx
             )
+            Timber.tag("PdfTextBoxDebug").d("LaunchedEffect bounds recalculation [ID: ${box.id}] | currentRectPx=$newPx")
+
             if (kotlin.math.abs(newPx.left - currentRectPx.left) > 1f ||
                 kotlin.math.abs(newPx.top - currentRectPx.top) > 1f ||
                 kotlin.math.abs(newPx.width - currentRectPx.width) > 1f ||
@@ -162,20 +217,19 @@ fun ResizableTextBox(
         }
     }
 
-    val requiredBottomSpacePx = with(density) { 60.dp.toPx() }
+    val requiredBottomSpacePx = with(density) { 60.dp.toPx() } / scale
 
-    val isHandleAtTop by remember(currentRectPx, pageHeightPx, handlePosition) {
-        derivedStateOf {
-            when (handlePosition) {
+    // Freeze handle position while dragging to prevent UI jumping
+    var isHandleAtTop by remember { mutableStateOf(false) }
+
+    LaunchedEffect(currentRectPx, pageHeightPx, handlePosition, requiredBottomSpacePx, isDraggingOrResizing) {
+        if (!isDraggingOrResizing) {
+            isHandleAtTop = when (handlePosition) {
                 HandlePosition.TOP -> true
                 HandlePosition.BOTTOM -> false
                 HandlePosition.AUTO -> {
-                    if (pageHeightPx <= 0f) {
-                        false
-                    } else {
-                        val spaceBelow = pageHeightPx - currentRectPx.bottom
-                        spaceBelow < requiredBottomSpacePx
-                    }
+                    if (pageHeightPx <= 0f) false
+                    else (pageHeightPx - currentRectPx.bottom) < requiredBottomSpacePx
                 }
             }
         }
@@ -184,11 +238,9 @@ fun ResizableTextBox(
     Box(
         modifier = modifier
             .zIndex(if (isSelected) 10f else 0f)
-            .offset {
-                IntOffset(
-                    (currentRectPx.left - halfHandlePx).roundToInt(),
-                    (currentRectPx.top - halfHandlePx).roundToInt()
-                )
+            .graphicsLayer {
+                translationX = currentRectPx.left - halfHandlePx
+                translationY = currentRectPx.top - halfHandlePx
             }
             .size(
                 width = with(density) { (currentRectPx.width + handleSizePx).toDp() },
@@ -201,10 +253,13 @@ fun ResizableTextBox(
                 .fillMaxSize()
                 .padding(handleSize / 2)
                 .pointerInput(Unit) {
-                    detectTapGestures { onSelect() }
+                    detectTapGestures {
+                        Timber.tag("PdfTextBoxDebug").d("TextBox Tapped[ID: ${box.id}]")
+                        onSelect()
+                    }
                 }
                 .then(
-                    if (isSelected) Modifier.border(1.5.dp, borderColor) else Modifier
+                    if (isSelected) Modifier.border((1.5f / scale).dp, borderColor) else Modifier
                 )
         ) {
             BasicTextField(
@@ -220,7 +275,7 @@ fun ResizableTextBox(
                     background = box.backgroundColor,
                     fontFamily = fontFamily,
                     fontSize = with(LocalDensity.current) {
-                        (box.fontSize * pageHeightPx).coerceAtLeast(10f).toSp()
+                        (box.fontSize * pageHeightPx).toSp()
                     },
                     fontWeight = if (box.isBold) FontWeight.Bold else FontWeight.Normal,
                     fontStyle = if (box.isItalic) FontStyle.Italic else FontStyle.Normal,
@@ -267,8 +322,11 @@ fun ResizableTextBox(
                         }
                         .size(handleTouchSize)
                         .pointerInput(onBoundsChanged) {
-                            detectDragGestures(
-                                onDragStart = { isDraggingOrResizing = true },
+                            detectEagerDragGestures(
+                                onDragStart = {
+                                    Timber.tag("PdfTextBoxDebug").d("ResizeHandle DragStart[ID: ${box.id}] Handle=$handle")
+                                    isDraggingOrResizing = true
+                                },
                                 onDragEnd = {
                                     isDraggingOrResizing = false
                                     val normalized = Rect(
@@ -277,40 +335,42 @@ fun ResizableTextBox(
                                         right = currentRectPx.right / pageWidthPx,
                                         bottom = currentRectPx.bottom / pageHeightPx
                                     )
+                                    Timber.tag("PdfTextBoxDebug").d("ResizeHandle DragEnd [ID: ${box.id}] finalNormalized=$normalized")
                                     onBoundsChanged(normalized)
                                 },
                                 onDragCancel = { isDraggingOrResizing = false }
                             ) { change, dragAmount ->
-                                change.consume()
+                                Timber.tag("PdfTextBoxDebug").v("ResizeHandle Drag [ID: ${box.id}] Handle=$handle | dragAmount=$dragAmount")
+
                                 var l = currentRectPx.left
                                 var t = currentRectPx.top
                                 var r = currentRectPx.right
                                 var b = currentRectPx.bottom
                                 val dx = dragAmount.x
                                 val dy = dragAmount.y
-                                val minSize = 50f
+                                val minSize = 50f / scale
 
                                 when (handle) {
                                     ResizeHandle.TOP_LEFT -> {
-                                        l = (l + dx).coerceIn(0f, r - minSize)
-                                        t = (t + dy).coerceIn(0f, b - minSize)
+                                        l = (l + dx).coerceIn(0f, maxOf(0f, r - minSize))
+                                        t = (t + dy).coerceIn(0f, maxOf(0f, b - minSize))
                                     }
-                                    ResizeHandle.TOP_CENTER -> t = (t + dy).coerceIn(0f, b - minSize)
+                                    ResizeHandle.TOP_CENTER -> t = (t + dy).coerceIn(0f, maxOf(0f, b - minSize))
                                     ResizeHandle.TOP_RIGHT -> {
-                                        r = (r + dx).coerceIn(l + minSize, pageWidthPx)
-                                        t = (t + dy).coerceIn(0f, b - minSize)
+                                        r = (r + dx).coerceIn(l + minSize, maxOf(l + minSize, pageWidthPx))
+                                        t = (t + dy).coerceIn(0f, maxOf(0f, b - minSize))
                                     }
-                                    ResizeHandle.RIGHT_CENTER -> r = (r + dx).coerceIn(l + minSize, pageWidthPx)
+                                    ResizeHandle.RIGHT_CENTER -> r = (r + dx).coerceIn(l + minSize, maxOf(l + minSize, pageWidthPx))
                                     ResizeHandle.BOTTOM_RIGHT -> {
-                                        r = (r + dx).coerceIn(l + minSize, pageWidthPx)
-                                        b = (b + dy).coerceIn(t + minSize, pageHeightPx)
+                                        r = (r + dx).coerceIn(l + minSize, maxOf(l + minSize, pageWidthPx))
+                                        b = (b + dy).coerceIn(t + minSize, maxOf(t + minSize, pageHeightPx))
                                     }
-                                    ResizeHandle.BOTTOM_CENTER -> b = (b + dy).coerceIn(t + minSize, pageHeightPx)
+                                    ResizeHandle.BOTTOM_CENTER -> b = (b + dy).coerceIn(t + minSize, maxOf(t + minSize, pageHeightPx))
                                     ResizeHandle.BOTTOM_LEFT -> {
-                                        l = (l + dx).coerceIn(0f, r - minSize)
-                                        b = (b + dy).coerceIn(t + minSize, pageHeightPx)
+                                        l = (l + dx).coerceIn(0f, maxOf(0f, r - minSize))
+                                        b = (b + dy).coerceIn(t + minSize, maxOf(t + minSize, pageHeightPx))
                                     }
-                                    ResizeHandle.LEFT_CENTER -> l = (l + dx).coerceIn(0f, r - minSize)
+                                    ResizeHandle.LEFT_CENTER -> l = (l + dx).coerceIn(0f, maxOf(0f, r - minSize))
                                     else -> {}
                                 }
                                 currentRectPx = Rect(l, t, r, b)
@@ -328,13 +388,15 @@ fun ResizableTextBox(
 
             DragPill(
                 isDarkMode = isDarkMode,
+                scale = scale,
                 modifier = Modifier
                     .align(if (isHandleAtTop) Alignment.TopCenter else Alignment.BottomCenter)
-                    .offset(y = if (isHandleAtTop) (-32).dp else 32.dp)
+                    .offset(y = if (isHandleAtTop) (-32f / scale).dp else (32f / scale).dp)
                     .zIndex(20f)
                     .pointerInput(pageWidthPx, pageHeightPx, onDragStart, onDragEnd, onDragCancel) {
-                        detectDragGestures(
+                        detectEagerDragGestures(
                             onDragStart = { offset ->
+                                Timber.tag("PdfTextBoxDebug").d("DragPill DragStart [ID: ${box.id}] at offset=$offset")
                                 isDraggingOrResizing = true
                                 onDragStart(offset)
                             },
@@ -346,6 +408,7 @@ fun ResizableTextBox(
                                     right = currentRectPx.right / pageWidthPx,
                                     bottom = currentRectPx.bottom / pageHeightPx
                                 )
+                                Timber.tag("PdfTextBoxDebug").d("DragPill DragEnd[ID: ${box.id}] finalNormalized=$normalized")
                                 onBoundsChanged(normalized)
                                 onDragEnd()
                             },
@@ -354,13 +417,12 @@ fun ResizableTextBox(
                                 onDragCancel()
                             }
                         ) { change, dragAmount ->
-                            change.consume()
                             val w = currentRectPx.width
                             val h = currentRectPx.height
                             val rawLeft = currentRectPx.left + dragAmount.x
                             val rawTop = currentRectPx.top + dragAmount.y
-                            val newLeft = rawLeft.coerceIn(0f, pageWidthPx - w)
-                            val newTop = rawTop.coerceIn(0f, pageHeightPx - h)
+                            val newLeft = rawLeft.coerceIn(0f, maxOf(0f, pageWidthPx - w))
+                            val newTop = rawTop.coerceIn(0f, maxOf(0f, pageHeightPx - h))
                             val newRect = Rect(newLeft, newTop, newLeft + w, newTop + h)
                             currentRectPx = newRect
                             onDrag(dragAmount, newRect)
@@ -374,21 +436,22 @@ fun ResizableTextBox(
 @Composable
 private fun DragPill(
     modifier: Modifier = Modifier,
-    isDarkMode: Boolean
+    isDarkMode: Boolean,
+    scale: Float = 1f
 ) {
     Surface(
         modifier = modifier
-            .size(width = 48.dp, height = 24.dp),
+            .size(width = (48f / scale).dp, height = (24f / scale).dp),
         shape = CircleShape,
         color = if (isDarkMode) Color.White else Color.Black,
         contentColor = if (isDarkMode) Color.Black else Color.White,
-        shadowElevation = 4.dp
+        shadowElevation = (4f / scale).dp
     ) {
         Box(contentAlignment = Alignment.Center) {
             Icon(
                 painter = painterResource(id = R.drawable.drag_handle),
                 contentDescription = "Drag to move text box",
-                modifier = Modifier.size(20.dp)
+                modifier = Modifier.size((20f / scale).dp)
             )
         }
     }

app/src/main/java/com/aryan/reader/pdf/PdfTocAndBookmarks.kt

@@ -0,0 +1,229 @@
+package com.aryan.reader.pdf
+
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.heightIn
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.KeyboardArrowRight
+import androidx.compose.material.icons.filled.KeyboardArrowDown
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.dp
+import io.legere.pdfiumandroid.api.Bookmark
+import io.legere.pdfiumandroid.suspend.PdfDocumentKt
+import org.json.JSONArray
+import timber.log.Timber
+
+private const val MAX_FIXED_RECURSION = 128
+
+internal data class PdfBookmark(val pageIndex: Int, val title: String, val totalPages: Int)
+
+internal data class TocEntry(val title: String, val pageIndex: Int, val nestLevel: Int)
+
+/**
+ * Patches the library bug where siblings are truncated due to depth-state leakage.
+ */
+suspend fun PdfDocumentKt.getFixedTableOfContents(): List<Bookmark> {
+    val tag = "PdfTocFix"
+    Timber.tag(tag).i("Starting Pure Reflection Traversal...")
+
+    return try {
+        // 1. Get the 'document' field (PdfDocumentU) from PdfDocumentKt
+        val documentField = PdfDocumentKt::class.java.getDeclaredField("document").apply { isAccessible = true }
+        val docUInstance = documentField.get(this) ?: return getTableOfContents()
+
+        // 2. Get the 'nativeDocument' field from PdfDocumentU
+        val nativeDocField = docUInstance.javaClass.getDeclaredField("nativeDocument").apply { isAccessible = true }
+        val nativeDocInstance = nativeDocField.get(docUInstance) ?: return getTableOfContents()
+
+        // 3. Get the native pointer (long) from PdfDocumentU
+        val ptrField = docUInstance.javaClass.getDeclaredField("mNativeDocPtr").apply { isAccessible = true }
+        val mNativeDocPtr = ptrField.get(docUInstance) as Long
+
+        // 4. Look up native methods using primitive 'long' types (mandatory for JNI)
+        val nClass = nativeDocInstance.javaClass
+        val lp = Long::class.javaPrimitiveType!! // Shorthand for 'long'
+
+        val getTitleM = nClass.getMethod("getBookmarkTitle", lp)
+        val getDestIdxM = nClass.getMethod("getBookmarkDestIndex", lp, lp)
+        val getFirstChildM = nClass.getMethod("getFirstChildBookmark", lp, lp)
+        val getSiblingM = nClass.getMethod("getSiblingBookmark", lp, lp)
+
+        val topLevel = mutableListOf<Bookmark>()
+        val visited = mutableSetOf<Long>()
+
+        /**
+         * Corrected traversal: Iterative for siblings, recursive for children.
+         */
+        fun walk(parentList: MutableList<Bookmark>, startPtr: Long, level: Int) {
+            var currentPtr = startPtr
+            var itemIndex = 0
+
+            while (currentPtr != 0L) {
+                if (visited.contains(currentPtr)) break
+                visited.add(currentPtr)
+
+                val title = getTitleM.invoke(nativeDocInstance, currentPtr) as? String ?: "Untitled"
+                val pageIdx = getDestIdxM.invoke(nativeDocInstance, mNativeDocPtr, currentPtr) as Long
+
+                Timber.tag(tag).v("Lvl $level | Item $itemIndex | Ptr: 0x${java.lang.Long.toHexString(currentPtr)} | $title")
+
+                val bookmark = Bookmark().apply {
+                    this.mNativePtr = currentPtr
+                    this.title = title
+                    this.pageIdx = pageIdx
+                }
+                parentList.add(bookmark)
+
+                // Recursive dive into children
+                val firstChild = getFirstChildM.invoke(nativeDocInstance, mNativeDocPtr, currentPtr) as Long
+                if (firstChild != 0L && level < MAX_FIXED_RECURSION) {
+                    walk(bookmark.children, firstChild, level + 1)
+                }
+
+                // Iterative move to next sibling
+                currentPtr = getSiblingM.invoke(nativeDocInstance, mNativeDocPtr, currentPtr) as Long
+                itemIndex++
+            }
+        }
+
+        // 5. Start from the root (Pass 0L as primitive long)
+        val firstRoot = getFirstChildM.invoke(nativeDocInstance, mNativeDocPtr, 0L) as Long
+        if (firstRoot != 0L) {
+            walk(topLevel, firstRoot, 0)
+        }
+
+        if (topLevel.isEmpty()) {
+            Timber.tag(tag).w("No items found, falling back to library.")
+            getTableOfContents()
+        } else {
+            Timber.tag(tag).i("TOC Successfully Patched! Nodes: ${visited.size}")
+            topLevel
+        }
+    } catch (e: Exception) {
+        Timber.tag(tag).e(e, "Reflection traversal critical error.")
+        this.getTableOfContents()
+    }
+}
+
+internal fun flattenToc(bookmarks: List<Bookmark>, level: Int = 0): List<TocEntry> {
+    Timber.tag("PdfTocDebug").d("Processing level $level with ${bookmarks.size} items")
+    val entries = mutableListOf<TocEntry>()
+    for ((index, bookmark) in bookmarks.withIndex()) {
+        val title = bookmark.title ?: "Untitled Chapter"
+        val childCount = bookmark.children.size
+
+        Timber.tag("PdfTocDebug").d(
+            "Lvl $level | Item $index: \"$title\" (Page: ${bookmark.pageIdx}) | Children: $childCount"
+        )
+
+        entries.add(
+            TocEntry(
+                title = title,
+                pageIndex = bookmark.pageIdx.toInt(),
+                nestLevel = level
+            )
+        )
+
+        if (childCount > 0) {
+            Timber.tag("PdfTocDebug").v("Entering children of \"$title\"")
+            entries.addAll(flattenToc(bookmark.children, level + 1))
+            Timber.tag("PdfTocDebug").v("Returned to Lvl $level from \"$title\"")
+        }
+    }
+    return entries
+}
+
+internal fun loadPdfBookmarksFromJson(bookmarksJson: String?): Set<PdfBookmark> {
+    if (bookmarksJson.isNullOrBlank()) return emptySet()
+    return try {
+        val jsonArray = JSONArray(bookmarksJson)
+        (0 until jsonArray.length()).mapNotNull { i ->
+            try {
+                val json = jsonArray.getJSONObject(i)
+                PdfBookmark(
+                    pageIndex = json.getInt("pageIndex"),
+                    title = json.getString("title"),
+                    totalPages = json.getInt("totalPages")
+                )
+            } catch (e: Exception) {
+                Timber.e(e, "Failed to parse bookmark from JSON object")
+                null
+            }
+        }.toSet()
+    } catch (e: Exception) {
+        Timber.e(e, "Failed to parse bookmarks from JSON string: $bookmarksJson")
+        emptySet()
+    }
+}
+
+@Composable
+internal fun PdfTocTreeItem(
+    label: String,
+    nestLevel: Int,
+    isExpanded: Boolean,
+    hasChildren: Boolean,
+    isCurrent: Boolean,
+    onToggleExpand: () -> Unit,
+    onClick: () -> Unit
+) {
+    val backgroundColor by animateColorAsState(
+        targetValue = if (isCurrent) MaterialTheme.colorScheme.primaryContainer.copy(alpha = 0.2f) else Color.Transparent,
+        label = "TocItemBackground"
+    )
+
+    val contentColor = if (isCurrent) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurface
+
+    Row(
+        modifier = Modifier
+            .fillMaxWidth()
+            .heightIn(min = 48.dp)
+            .background(backgroundColor)
+            .clickable(onClick = onClick)
+            .padding(vertical = 4.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Spacer(modifier = Modifier.width((16 * nestLevel).dp))
+
+        Box(
+            modifier = Modifier
+                .size(40.dp)
+                .clickable(enabled = hasChildren, onClick = onToggleExpand),
+            contentAlignment = Alignment.Center
+        ) {
+            if (hasChildren) {
+                Icon(
+                    imageVector = if (isExpanded) Icons.Default.KeyboardArrowDown else Icons.AutoMirrored.Filled.KeyboardArrowRight,
+                    contentDescription = if (isExpanded) "Collapse" else "Expand",
+                    tint = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+        }
+
+        Text(
+            text = label,
+            style = if (nestLevel == 0) MaterialTheme.typography.bodyLarge else MaterialTheme.typography.bodyMedium,
+            fontWeight = if (isCurrent) FontWeight.Bold else if (nestLevel == 0) FontWeight.SemiBold else FontWeight.Normal,
+            color = contentColor,
+            maxLines = 2,
+            overflow = TextOverflow.Ellipsis,
+            modifier = Modifier.weight(1f).padding(end = 16.dp)
+        )
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfToolbars.kt

@@ -0,0 +1,541 @@
+// PdfToolbars.kt
+package com.aryan.reader.pdf
+
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.slideInVertically
+import androidx.compose.animation.slideOutVertically
+import androidx.compose.foundation.background
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.horizontalScroll
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyRow
+import androidx.compose.foundation.lazy.items
+import com.aryan.reader.data.RecentFileItem
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material.icons.filled.*
+import androidx.compose.material3.*
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.style.TextOverflow
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.platform.testTag
+import com.aryan.reader.BuildConfig
+import com.aryan.reader.FileType
+import com.aryan.reader.R
+import com.aryan.reader.SearchState
+import com.aryan.reader.SearchTopBar
+import com.aryan.reader.TooltipIconButton
+import com.aryan.reader.epubreader.SystemUiMode
+import kotlin.collections.isNotEmpty
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+internal fun PdfTopBar(
+    modifier: Modifier = Modifier,
+    showStandardBars: Boolean,
+    systemUiMode: SystemUiMode,
+    statusBarHeightDp: Dp,
+    searchState: SearchState,
+    focusRequester: FocusRequester,
+    onCloseSearch: () -> Unit,
+    isLoadingDocument: Boolean,
+    errorMessage: String?,
+    currentPageForDisplay: Int,
+    totalPages: Int,
+    pagerStatePageCount: Int,
+    hiddenTools: Set<String>,
+    isScrollLocked: Boolean,
+    isEditMode: Boolean,
+    displayMode: DisplayMode,
+    isKeepScreenOn: Boolean,
+    isTtsSessionActive: Boolean,
+    isBookmarked: Boolean,
+    canDeletePage: Boolean,
+    isReflowingThisBook: Boolean,
+    hasReflowFile: Boolean,
+    isPdfDocumentLoaded: Boolean,
+    isTabsEnabled: Boolean,
+    openTabs: List<RecentFileItem>,
+    activeTabBookId: String?,
+    effectiveFileType: FileType,
+    onNavigateBack: () -> Unit,
+    onShowThemePanel: () -> Unit,
+    onToggleScrollLock: () -> Unit,
+    onShowDictionarySettings: () -> Unit,
+    onShowPenPlayground: () -> Unit,
+    onImportSvg: () -> Unit,
+    onShowCustomizeTools: () -> Unit,
+    onShowOcrLanguage: () -> Unit,
+    onShowVisualOptions: () -> Unit,
+    onChangeDisplayMode: (DisplayMode) -> Unit,
+    onToggleKeepScreenOn: () -> Unit,
+    onStartAutoScroll: () -> Unit,
+    onShowTtsSettings: () -> Unit,
+    onToggleBookmark: () -> Unit,
+    onInsertPage: () -> Unit,
+    onDeletePage: () -> Unit,
+    onReflowAction: () -> Unit,
+    onShare: () -> Unit,
+    onSaveCopy: () -> Unit,
+    onPrint: () -> Unit,
+    onTabClick: (String) -> Unit,
+    onTabClose: (String) -> Unit,
+    onNewTabClick: () -> Unit
+) {
+    AnimatedVisibility(
+        visible = showStandardBars,
+        enter = slideInVertically(animationSpec = tween(200)) { fullHeight -> -fullHeight } + fadeIn(animationSpec = tween(200)),
+        exit = slideOutVertically(animationSpec = tween(200)) { fullHeight -> -fullHeight } + fadeOut(animationSpec = tween(200)),
+        modifier = modifier
+    ) {
+        val isStatusBarVisible = when (systemUiMode) {
+            SystemUiMode.DEFAULT -> true
+            SystemUiMode.SYNC -> showStandardBars
+            SystemUiMode.HIDDEN -> false
+        }
+        val topBarPadding = if (isStatusBarVisible) statusBarHeightDp else 0.dp
+
+        Surface(
+            modifier = Modifier.fillMaxWidth(),
+            color = MaterialTheme.colorScheme.surface,
+            tonalElevation = 4.dp
+        ) {
+            Column(modifier = Modifier.fillMaxWidth().padding(top = topBarPadding)) {
+                Row(
+                    modifier = Modifier.fillMaxWidth().height(56.dp).padding(horizontal = 4.dp),
+                    verticalAlignment = Alignment.CenterVertically
+                ) {
+                    if (searchState.isSearchActive) {
+                        SearchTopBar(
+                            searchState = searchState,
+                            focusRequester = focusRequester,
+                            onCloseSearch = onCloseSearch
+                        )
+                    } else {
+                        TooltipIconButton(
+                            text = stringResource(R.string.tooltip_back),
+                            description = stringResource(R.string.tooltip_back_desc),
+                            onClick = onNavigateBack
+                        ) {
+                            Icon(Icons.AutoMirrored.Filled.ArrowBack, contentDescription = "Back")
+                        }
+                        val titleText = when {
+                            isLoadingDocument -> stringResource(R.string.loading_pdf)
+                            errorMessage != null -> stringResource(R.string.error_loading_pdf)
+                            totalPages > 0 && pagerStatePageCount > 0 -> "Page ${currentPageForDisplay + 1} of $totalPages"
+                            totalPages > 0 && pagerStatePageCount == 0 -> stringResource(R.string.loading_page)
+                            else -> "PDF Viewer"
+                        }
+                        Text(
+                            text = titleText,
+                            style = MaterialTheme.typography.titleMedium,
+                            maxLines = 1,
+                            overflow = TextOverflow.Ellipsis,
+                            modifier = Modifier.padding(start = 12.dp).weight(1f).testTag("PageNumberIndicator")
+                        )
+
+                        if (!hiddenTools.contains(PdfReaderTool.THEME.name)) {
+                            TooltipIconButton(
+                                text = stringResource(R.string.tooltip_theme),
+                                description = stringResource(R.string.tooltip_theme_desc),
+                                onClick = onShowThemePanel
+                            ) {
+                                Icon(painterResource(id = R.drawable.palette), contentDescription = stringResource(R.string.tooltip_theme_desc), tint = MaterialTheme.colorScheme.onSurfaceVariant)
+                            }
+                        }
+
+                        if (!hiddenTools.contains(PdfReaderTool.LOCK_PANNING.name)) {
+                            TooltipIconButton(
+                                text = if (isScrollLocked) stringResource(R.string.tooltip_unlock_pan) else stringResource(R.string.tooltip_lock_pan),
+                                description = if (isScrollLocked) stringResource(R.string.tooltip_unlock_pan_desc) else stringResource(R.string.tooltip_lock_pan_desc),
+                                onClick = onToggleScrollLock
+                            ) {
+                                Icon(if (isScrollLocked) Icons.Default.Lock else Icons.Default.LockOpen, contentDescription = if (isScrollLocked) stringResource(R.string.tooltip_unlock_pan) else stringResource(R.string.tooltip_lock_pan), tint = MaterialTheme.colorScheme.onSurfaceVariant)
+                            }
+                        }
+
+                        if (!hiddenTools.contains(PdfReaderTool.DICTIONARY.name)) {
+                            TooltipIconButton(
+                                text = stringResource(R.string.tooltip_dictionary),
+                                description = stringResource(R.string.tooltip_dictionary_desc),
+                                onClick = onShowDictionarySettings
+                            ) {
+                                Icon(painterResource(id = R.drawable.dictionary), contentDescription = "Dictionary Settings", tint = MaterialTheme.colorScheme.onSurfaceVariant)
+                            }
+                        }
+
+                        if (BuildConfig.DEBUG) {
+                            TooltipIconButton(text = stringResource(R.string.pen_playground), onClick = onShowPenPlayground) {
+                                Icon(Icons.Default.Star, contentDescription = "Open Pen Playground", tint = MaterialTheme.colorScheme.primary)
+                            }
+                            TooltipIconButton(text = stringResource(R.string.import_svg), onClick = onImportSvg) {
+                                Icon(Icons.Default.Brush, contentDescription = stringResource(R.string.import_svg), tint = Color(0xFFE91E63))
+                            }
+                        }
+
+                        Box {
+                            var showMoreMenu by remember { mutableStateOf(false) }
+                            TooltipIconButton(
+                                text = stringResource(R.string.tooltip_more_options),
+                                description = stringResource(R.string.tooltip_more_options_desc),
+                                onClick = { showMoreMenu = true }) {
+                                Icon(Icons.Default.MoreVert, contentDescription = stringResource(R.string.tooltip_more_options))
+                            }
+
+                            DropdownMenu(expanded = showMoreMenu, onDismissRequest = { showMoreMenu = false }) {
+                                DropdownMenuItem(
+                                    text = { Text(stringResource(R.string.title_customize_toolbar)) },
+                                    onClick = { showMoreMenu = false; onShowCustomizeTools() },
+                                    leadingIcon = { Icon(Icons.Default.Settings, contentDescription = stringResource(R.string.title_customize_toolbar), modifier = Modifier.size(20.dp)) }
+                                )
+                                HorizontalDivider()
+
+                                if (BuildConfig.IS_PRO && !hiddenTools.contains(PdfReaderTool.OCR_LANGUAGE.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_ocr_language)) },
+                                        onClick = { showMoreMenu = false; onShowOcrLanguage() }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.VISUAL_OPTIONS.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_visual_options)) },
+                                        onClick = { showMoreMenu = false; onShowVisualOptions() },
+                                        leadingIcon = { Icon(Icons.Default.Visibility, contentDescription = null, modifier = Modifier.size(20.dp)) }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.READING_MODE.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_reading_mode_vertical)) },
+                                        enabled = !isTtsSessionActive,
+                                        onClick = { onChangeDisplayMode(DisplayMode.VERTICAL_SCROLL); showMoreMenu = false },
+                                        trailingIcon = { if (displayMode == DisplayMode.VERTICAL_SCROLL) Icon(Icons.Filled.Check, contentDescription = stringResource(R.string.content_desc_selected)) }
+                                    )
+                                    HorizontalDivider()
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_reading_mode_paginated)) },
+                                        enabled = !isTtsSessionActive,
+                                        onClick = { onChangeDisplayMode(DisplayMode.PAGINATION); showMoreMenu = false },
+                                        trailingIcon = { if (displayMode == DisplayMode.PAGINATION) Icon(Icons.Filled.Check, contentDescription = stringResource(R.string.content_desc_selected)) }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.KEEP_SCREEN_ON.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_keep_screen_on)) },
+                                        onClick = { onToggleKeepScreenOn(); showMoreMenu = false },
+                                        trailingIcon = { if (isKeepScreenOn) Icon(Icons.Filled.Check, contentDescription = stringResource(R.string.content_desc_selected)) }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.AUTO_SCROLL.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_auto_scroll)) },
+                                        enabled = !isTtsSessionActive && displayMode == DisplayMode.VERTICAL_SCROLL,
+                                        onClick = { showMoreMenu = false; onStartAutoScroll() }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.TTS_SETTINGS.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_tts_voice_settings)) },
+                                        enabled = !isTtsSessionActive,
+                                        onClick = { showMoreMenu = false; onShowTtsSettings() },
+                                        leadingIcon = { Icon(Icons.Default.GraphicEq, contentDescription = null, modifier = Modifier.size(20.dp)) }
+                                    )
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.BOOKMARK.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(if (isBookmarked) stringResource(R.string.menu_remove_bookmark) else stringResource(R.string.menu_bookmark_this_page)) },
+                                        onClick = { showMoreMenu = false; onToggleBookmark() }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.PAGE_MANAGEMENT.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.menu_insert_blank_page)) },
+                                        onClick = { showMoreMenu = false; onInsertPage() }
+                                    )
+                                    if (canDeletePage) {
+                                        DropdownMenuItem(
+                                            text = { Text(stringResource(R.string.menu_delete_page)) },
+                                            onClick = { showMoreMenu = false; onDeletePage() },
+                                            colors = MenuDefaults.itemColors(textColor = MaterialTheme.colorScheme.error)
+                                        )
+                                    }
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.REFLOW.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(when { isReflowingThisBook -> stringResource(R.string.generating_reflow_progress); hasReflowFile -> stringResource(R.string.action_open_text_view); else -> stringResource(R.string.action_generate_text_view) }) },
+                                        enabled = isPdfDocumentLoaded && !isReflowingThisBook,
+                                        onClick = { showMoreMenu = false; onReflowAction() },
+                                        leadingIcon = { Icon(painterResource(id = R.drawable.format_size), contentDescription = null, modifier = Modifier.size(20.dp)) }
+                                    )
+                                    HorizontalDivider()
+                                }
+
+                                if (!hiddenTools.contains(PdfReaderTool.SHARE.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.action_share)) },
+                                        onClick = { showMoreMenu = false; onShare() },
+                                        leadingIcon = { Icon(Icons.Default.Share, contentDescription = null) }
+                                    )
+                                }
+
+                                if (effectiveFileType == FileType.PDF && !hiddenTools.contains(PdfReaderTool.SAVE_COPY.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.action_save_copy_to_device)) },
+                                        onClick = { showMoreMenu = false; onSaveCopy() },
+                                        leadingIcon = { Icon(Icons.Default.Save, contentDescription = null) }
+                                    )
+                                }
+
+                                if (effectiveFileType == FileType.PDF && !hiddenTools.contains(PdfReaderTool.PRINT.name)) {
+                                    DropdownMenuItem(
+                                        text = { Text(stringResource(R.string.action_print)) },
+                                        onClick = { showMoreMenu = false; onPrint() },
+                                        leadingIcon = { Icon(painterResource(id = R.drawable.print), contentDescription = null, modifier = Modifier.size(20.dp)) }
+                                    )
+                                }
+                            }
+                        }
+                    }
+                }
+                if (isTabsEnabled && openTabs.isNotEmpty() && effectiveFileType == FileType.PDF) {
+                    LazyRow(
+                        modifier = Modifier.fillMaxWidth().height(44.dp).background(MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.4f)),
+                        verticalAlignment = Alignment.Bottom
+                    ) {
+                        items(openTabs, key = { it.bookId }) { tab ->
+                            val isSelected = tab.bookId == activeTabBookId
+                            val bgColor = if (isSelected) MaterialTheme.colorScheme.surface else Color.Transparent
+                            val contentColor = if (isSelected) MaterialTheme.colorScheme.onSurface else MaterialTheme.colorScheme.onSurfaceVariant
+
+                            Row(
+                                modifier = Modifier
+                                    .height(if (isSelected) 44.dp else 36.dp)
+                                    .clip(RoundedCornerShape(topStart = 12.dp, topEnd = 12.dp))
+                                    .background(bgColor)
+                                    .clickable { onTabClick(tab.bookId) }
+                                    .padding(horizontal = 16.dp),
+                                verticalAlignment = Alignment.CenterVertically
+                            ) {
+                                Text(
+                                    text = tab.customName ?: tab.title ?: tab.displayName,
+                                    maxLines = 1,
+                                    overflow = TextOverflow.Ellipsis,
+                                    modifier = Modifier.widthIn(max = 140.dp),
+                                    style = MaterialTheme.typography.labelLarge,
+                                    color = contentColor
+                                )
+                                Spacer(modifier = Modifier.width(8.dp))
+                                IconButton(
+                                    onClick = { onTabClose(tab.bookId) },
+                                    modifier = Modifier.size(20.dp)
+                                ) {
+                                    Icon(Icons.Default.Close, contentDescription = stringResource(R.string.close_tab), modifier = Modifier.size(16.dp), tint = contentColor)
+                                }
+                            }
+                        }
+
+                        item {
+                            IconButton(onClick = onNewTabClick, modifier = Modifier.padding(start = 8.dp, bottom = 4.dp).size(36.dp)) {
+                                Icon(Icons.Default.Add, contentDescription = "New Tab", tint = MaterialTheme.colorScheme.onSurfaceVariant)
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+@Composable
+fun ReflowProgressOverlay(
+    modifier: Modifier = Modifier,
+    showStandardBars: Boolean,
+    isReflowingThisBook: Boolean,
+    reflowProgressValue: Float
+) {
+    AnimatedVisibility(
+        visible = showStandardBars && isReflowingThisBook,
+        enter = fadeIn(animationSpec = tween(200)) + slideInVertically(animationSpec = tween(200)),
+        exit = fadeOut(animationSpec = tween(200)) + slideOutVertically(animationSpec = tween(200)),
+        modifier = modifier
+    ) {
+        Surface(
+            color = MaterialTheme.colorScheme.surfaceVariant,
+            modifier = Modifier.fillMaxWidth(),
+            shape = RoundedCornerShape(bottomStart = 8.dp, bottomEnd = 8.dp),
+            shadowElevation = 4.dp
+        ) {
+            Column(modifier = Modifier.padding(12.dp)) {
+                Row(verticalAlignment = Alignment.CenterVertically, modifier = Modifier.fillMaxWidth()) {
+                    Text(
+                        text = stringResource(R.string.generating_text_view),
+                        style = MaterialTheme.typography.titleSmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.weight(1f)
+                    )
+                    Text(
+                        text = "${(reflowProgressValue * 100).toInt()}%",
+                        style = MaterialTheme.typography.labelSmall,
+                        fontWeight = FontWeight.Bold,
+                        color = MaterialTheme.colorScheme.primary
+                    )
+                }
+                Spacer(Modifier.height(8.dp))
+                LinearProgressIndicator(
+                    progress = { reflowProgressValue },
+                    modifier = Modifier.fillMaxWidth().height(6.dp),
+                    trackColor = MaterialTheme.colorScheme.surfaceVariant.copy(alpha = 0.5f)
+                )
+            }
+        }
+    }
+}
+
+@Composable
+fun PdfBottomBar(
+    modifier: Modifier = Modifier,
+    showStandardBars: Boolean,
+    searchStateActive: Boolean,
+    systemUiMode: SystemUiMode,
+    navBarHeightDp: Dp,
+    hiddenTools: Set<String>,
+    isTtsPlayingOrLoading: Boolean,
+    showAllTextHighlights: Boolean,
+    isHighlightingLoading: Boolean,
+    isEditMode: Boolean,
+    isTtsSessionActive: Boolean,
+    ttsErrorMessage: String?,
+    onShowSlider: () -> Unit,
+    onShowToc: () -> Unit,
+    onSearchClick: () -> Unit,
+    onToggleHighlights: () -> Unit,
+    onShowAiHub: () -> Unit,
+    onToggleEditMode: () -> Unit,
+    onToggleTts: () -> Unit
+) {
+    AnimatedVisibility(
+        visible = showStandardBars && !searchStateActive,
+        enter = slideInVertically(animationSpec = tween(200)) { fullHeight -> fullHeight } + fadeIn(animationSpec = tween(200)),
+        exit = slideOutVertically(animationSpec = tween(200)) { fullHeight -> fullHeight } + fadeOut(animationSpec = tween(200)),
+        modifier = modifier
+    ) {
+        val isNavBarVisible = systemUiMode != SystemUiMode.HIDDEN
+        val bottomBarPadding = if (isNavBarVisible) navBarHeightDp else 0.dp
+
+        Surface(modifier = Modifier.fillMaxWidth(), color = MaterialTheme.colorScheme.surface, tonalElevation = 4.dp) {
+            val bottomBarScrollState = rememberScrollState()
+
+            Row(
+                modifier = Modifier.fillMaxWidth().padding(bottom = bottomBarPadding).height(56.dp).padding(horizontal = 8.dp).horizontalScroll(bottomBarScrollState),
+                verticalAlignment = Alignment.CenterVertically,
+                horizontalArrangement = Arrangement.spacedBy(12.dp)
+            ) {
+                if (!hiddenTools.contains(PdfReaderTool.SLIDER.name)) {
+                    TooltipIconButton(
+                        text = stringResource(R.string.tooltip_slider),
+                        description = stringResource(R.string.tooltip_slider_desc),
+                        onClick = onShowSlider,
+                        enabled = !isTtsPlayingOrLoading
+                    ) {
+                        Icon(painterResource(id = R.drawable.slider), contentDescription = stringResource(R.string.content_desc_navigate_slider))
+                    }
+                }
+                if (!hiddenTools.contains(PdfReaderTool.TOC.name)) {
+                    TooltipIconButton(
+                        text = stringResource(R.string.tooltip_toc),
+                        description = stringResource(R.string.tooltip_toc_desc),
+                        onClick = onShowToc,
+                        enabled = !isTtsPlayingOrLoading,
+                        modifier = Modifier.testTag("TocButton")
+                    ) {
+                        Icon(Icons.Default.Menu, contentDescription = "Table of Contents")
+                    }
+                }
+
+                if (!hiddenTools.contains(PdfReaderTool.SEARCH.name)) {
+                    TooltipIconButton(
+                        text = stringResource(R.string.tooltip_search),
+                        description = stringResource(R.string.tooltip_search_desc),
+                        onClick = onSearchClick,
+                        enabled = !isTtsPlayingOrLoading,
+                        modifier = Modifier.testTag("SearchButton")
+                    ) {
+                        Icon(Icons.Default.Search, contentDescription = stringResource(R.string.action_search))
+                    }
+                }
+                if (!hiddenTools.contains(PdfReaderTool.HIGHLIGHT_ALL.name)) {
+                    TooltipIconButton(
+                        text = if (showAllTextHighlights) stringResource(R.string.tooltip_highlights_off) else stringResource(R.string.tooltip_highlights),
+                        description = if (showAllTextHighlights) stringResource(R.string.tooltip_highlights_off_desc) else stringResource(R.string.tooltip_highlights_desc),
+                        onClick = onToggleHighlights
+                    ) {
+                        if (isHighlightingLoading) CircularProgressIndicator(Modifier.size(24.dp))
+                        else Icon(painterResource(id = R.drawable.highlight_text), contentDescription = "Highlight all text", tint = if (showAllTextHighlights) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant)
+                    }
+                }
+
+                if (BuildConfig.FLAVOR != "oss" && !hiddenTools.contains(PdfReaderTool.AI_FEATURES.name)) {
+                    TooltipIconButton(
+                        text = stringResource(R.string.tooltip_ai),
+                        description = stringResource(R.string.tooltip_ai_desc),
+                        onClick = onShowAiHub
+                    ) {
+                        Icon(painterResource(id = R.drawable.ai), contentDescription = stringResource(R.string.tooltip_ai))
+                    }
+                }
+
+                if (!hiddenTools.contains(PdfReaderTool.EDIT_MODE.name)) {
+                    TooltipIconButton(
+                        text = if (isEditMode) stringResource(R.string.tooltip_edit_mode_exit) else stringResource(R.string.tooltip_edit_mode),
+                        description = if (isEditMode) stringResource(R.string.tooltip_edit_mode_exit_desc) else stringResource(R.string.tooltip_edit_mode_desc),
+                        onClick = onToggleEditMode
+                    ) {
+                        Icon(Icons.Default.Edit, contentDescription = "Toggle Editing Mode", tint = if (isEditMode) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant)
+                    }
+                }
+
+                if (!hiddenTools.contains(PdfReaderTool.TTS_CONTROLS.name)) {
+                    TooltipIconButton(
+                        text = if (isTtsSessionActive) stringResource(R.string.tooltip_tts_stop) else stringResource(R.string.tooltip_tts_start),
+                        description = if (isTtsSessionActive) stringResource(R.string.tooltip_tts_stop_desc) else stringResource(R.string.tooltip_tts_start_desc),
+                        onClick = onToggleTts
+                    ) {
+                        Icon(if (isTtsSessionActive) painterResource(id = R.drawable.close) else painterResource(id = R.drawable.text_to_speech), contentDescription = if (isTtsSessionActive) "Stop TTS" else "Start TTS", tint = if (isTtsSessionActive) MaterialTheme.colorScheme.primary else MaterialTheme.colorScheme.onSurfaceVariant)
+                    }
+                }
+
+                ttsErrorMessage?.let {
+                    Text(it, color = MaterialTheme.colorScheme.error, style = MaterialTheme.typography.bodySmall, modifier = Modifier.weight(1f).padding(start = 8.dp), maxLines = 2, overflow = TextOverflow.Ellipsis)
+                }
+            }
+        }
+    }
+}

app/src/main/java/com/aryan/reader/pdf/PdfVerticalReader.kt

@@ -184,11 +184,12 @@ private data class DividerLayout(val y: Float, val width: Float, val height: Flo
 @OptIn(FlowPreview::class)
 @Composable
 internal fun PdfVerticalReader(
+    modifier: Modifier = Modifier,
     state: VerticalPdfReaderState,
     pdfDocument: StableHolder<ReaderDocument>,
     activeTheme: com.aryan.reader.ReaderTheme,
+    excludeImages: Boolean = false,
     totalPages: Int,
-    modifier: Modifier = Modifier,
     virtualPages: List<VirtualPage> = emptyList(),
     pageAspectRatios: StableHolder<List<Float>>,
     headerHeight: Dp,
@@ -284,6 +285,11 @@ internal fun PdfVerticalReader(
         val dividerHeightDp = 8.dp
         val dividerHeightPx = with(density) { dividerHeightDp.toPx() }
 
+        var isFlinging by remember { mutableStateOf(false) }
+        var isFastFlinging by remember { mutableStateOf(false) }
+        var isInteracting by remember { mutableStateOf(false) }
+        var isDragging by remember { mutableStateOf(false) }
+
         val layoutState = remember(ratios, screenWidth, screenHeight, density) {
             data class LayoutResult(val pages: List<PdfPageLayout>, val totalHeight: Float)
 
@@ -373,8 +379,41 @@ internal fun PdfVerticalReader(
         var isInitialLayout by remember { mutableStateOf(true) }
         val currentScaleProvider = remember(zoomAnimatable) { { zoomAnimatable.value } }
 
+        var hasRestoredLockedState by remember { mutableStateOf(false) }
+
+        LaunchedEffect(isScrollLocked, lockedState, totalDocHeight, screenWidth, isInteracting) {
+            if (!hasRestoredLockedState && isScrollLocked && lockedState != null && totalDocHeight > 0f && screenWidth > 0f && !isInteracting) {
+                val (savedScale, savedPanX, savedPanY) = lockedState
+
+                Timber.tag("PdfLockDiagnostic").i("RESTORING: Scale=$savedScale, X=$savedPanX, Y=$savedPanY")
+
+                val zoomedDocWidth = screenWidth * savedScale
+                val minPanX = if (zoomedDocWidth < screenWidth) (screenWidth - zoomedDocWidth) / 2f else -(zoomedDocWidth - screenWidth)
+                val maxPanX = if (zoomedDocWidth < screenWidth) minPanX else 0f
+
+                val zoomedDocHeight = totalDocHeight * savedScale
+                val minPanY = (screenHeight - footerHeightPx - zoomedDocHeight).coerceAtMost(headerHeightPx)
+                val maxPanY = headerHeightPx
+
+                zoomAnimatable.stop()
+                panXAnimatable.stop()
+                panYAnimatable.stop()
+
+                panXAnimatable.updateBounds(minPanX, maxPanX)
+                panYAnimatable.updateBounds(minPanY, maxPanY)
+
+                zoomAnimatable.snapTo(savedScale)
+                panXAnimatable.snapTo(savedPanX)
+                panYAnimatable.snapTo(savedPanY.coerceIn(minPanY, maxPanY))
+
+                Timber.tag("PdfLockDiagnostic").d("RESTORE SNAP COMPLETE: Scale=${zoomAnimatable.value}, X=${panXAnimatable.value}, Y=${panYAnimatable.value}")
+
+                hasRestoredLockedState = true
+            }
+        }
+
         LaunchedEffect(layoutState.pages) {
-            if (!isInitialLayout) {
+            if (!isInitialLayout && !isScrollLocked) {
                 val targetPageIdx = if (targetPageDuringResize.intValue != -1) {
                     targetPageDuringResize.intValue
                 } else {
@@ -410,21 +449,13 @@ internal fun PdfVerticalReader(
                         launch { panXAnimatable.snapTo(targetPanX) }
                         launch { panYAnimatable.snapTo(finalPanY) }
                     }
-
-                    panYAnimatable.updateBounds(lowerBound = minPanY, upperBound = headerHeightPx)
-                    state.currentPage = targetPageIdx
-                    if (isFit) onZoomChange(targetZoom)
+                }
             }
 
+            if (!isInitialLayout) {
                 delay(50)
                 isResizing = false
                 targetPageDuringResize.intValue = -1
-            } else if (isScrollLocked && lockedState != null) {
-                val (savedScale, savedPanX, _) = lockedState
-                coroutineScope {
-                    launch { zoomAnimatable.snapTo(savedScale) }
-                    launch { panXAnimatable.snapTo(savedPanX) }
-                }
             }
             isInitialLayout = false
         }
@@ -461,11 +492,6 @@ internal fun PdfVerticalReader(
             return clampValues(targetZoom, targetPanX, targetPanY)
         }
 
-        var isFlinging by remember { mutableStateOf(false) }
-        var isFastFlinging by remember { mutableStateOf(false) }
-        var isInteracting by remember { mutableStateOf(false) }
-        var isDragging by remember { mutableStateOf(false) }
-
         LaunchedEffect(
             totalDocHeight, screenHeight, headerHeightPx, footerHeightPx, zoomAnimatable.value, isInteracting, isFlinging, isResizing
         ) {
@@ -483,6 +509,9 @@ internal fun PdfVerticalReader(
                 panYAnimatable.snapTo(y)
             }
             if (x != currentPanX) {
+                if (isScrollLocked) {
+                    Timber.tag("PdfLockDiagnostic").d("FORCED SNAP: X=$currentPanX to $x")
+                }
                 panXAnimatable.snapTo(x)
             }
         }
@@ -585,8 +614,8 @@ internal fun PdfVerticalReader(
                         val dist = (draggingBoxOffset.y - topEdge).coerceAtMost(scrollZone)
                         val ratio = 1f - (dist / scrollZone).coerceIn(0f, 1f)
                         scrollDelta = -15f * ratio
-                    } else if (draggingBoxOffset.y + draggingBoxSize.height > bottomEdge - scrollZone) {
-                        val boxBottom = draggingBoxOffset.y + draggingBoxSize.height
+                    } else if (draggingBoxOffset.y + (draggingBoxSize.height * zoomAnimatable.value) > bottomEdge - scrollZone) {
+                        val boxBottom = draggingBoxOffset.y + (draggingBoxSize.height * zoomAnimatable.value)
                         val dist = (bottomEdge - boxBottom).coerceAtMost(scrollZone)
                         val ratio = 1f - (dist / scrollZone).coerceIn(0f, 1f)
                         scrollDelta = 15f * ratio
@@ -744,6 +773,9 @@ internal fun PdfVerticalReader(
             }
 
             if (!isAnimating) {
+                if (isScrollLocked) {
+                    Timber.tag("PdfLockDiagnostic").v("CLAMP CHECK: X=${panXAnimatable.value} | Allowed Range=[$minPanX, $maxPanX]")
+                }
                 panYAnimatable.updateBounds(lowerBound = minPanY, upperBound = headerHeightPx)
                 panXAnimatable.updateBounds(lowerBound = minPanX, upperBound = maxPanX)
             } else {
@@ -1575,6 +1607,7 @@ internal fun PdfVerticalReader(
                                     virtualPage = virtualPage,
                                     totalPages = totalPages,
                                     activeTheme = activeTheme,
+                                    excludeImages = excludeImages,
                                     externalScale = highResScale,
                                     onScaleChanged = {},
                                     showAllTextHighlights = showAllTextHighlights,
@@ -1638,17 +1671,20 @@ internal fun PdfVerticalReader(
                                         val boxScreenY = pageScreenY + (localTopLeft.y * currentZoom)
 
                                         draggingBoxSize = Size(
-                                            box.relativeBounds.width * page.width * currentZoom,
-                                            box.relativeBounds.height * page.height * currentZoom
+                                            box.relativeBounds.width * page.width,
+                                            box.relativeBounds.height * page.height
                                         )
-                                        draggingBoxPageHeight = page.height * currentZoom
+                                        draggingBoxPageHeight = page.height
 
                                         draggingBoxOffset = Offset(boxScreenX, boxScreenY)
                                         draggingBoxTouchDelta = touchOffset * currentZoom
                                         draggingBoxId = box.id
                                     },
                                     onTextBoxDrag = { dragDelta ->
-                                        draggingBoxOffset += dragDelta
+                                        val currentZoom = zoomAnimatable.value
+                                        val scaledDelta = dragDelta * currentZoom
+                                        Timber.tag("PdfTextBoxDebug").v("VerticalReader onTextBoxDrag dragDelta=$dragDelta zoom=$currentZoom scaledDelta=$scaledDelta")
+                                        draggingBoxOffset += scaledDelta
                                     },
                                     onTextBoxDragEnd = {
                                         scope.launch {
@@ -1681,9 +1717,9 @@ internal fun PdfVerticalReader(
                                                 val rawRelY =
                                                     (finalBoxY / currentZoom) / targetPage.height
                                                 val relW =
-                                                    (draggingBoxSize.width / currentZoom) / targetPage.width
+                                                    draggingBoxSize.width / targetPage.width
                                                 val relH =
-                                                    (draggingBoxSize.height / currentZoom) / targetPage.height
+                                                    draggingBoxSize.height / targetPage.height
 
                                                 val clampedW = relW.coerceAtMost(1f)
                                                 val clampedH = relH.coerceAtMost(1f)
@@ -2051,7 +2087,8 @@ internal fun PdfVerticalReader(
                 val fontScaleRatio =
                     if (currentBoxHeight > 0) draggingBoxPageHeight / currentBoxHeight else 1f
 
-                val boxBottomY = draggingBoxOffset.y + draggingBoxSize.height
+                val currentZoom = zoomAnimatable.value
+                val boxBottomY = draggingBoxOffset.y + (draggingBoxSize.height * currentZoom)
                 val spaceBelow = screenHeight - boxBottomY
                 val overlayHandlePos =
                     if (spaceBelow < with(density) { 60.dp.toPx() }) HandlePosition.TOP else HandlePosition.BOTTOM
@@ -2062,6 +2099,11 @@ internal fun PdfVerticalReader(
                             draggingBoxOffset.x.roundToInt(), draggingBoxOffset.y.roundToInt()
                         )
                     }
+                    .graphicsLayer {
+                        scaleX = currentZoom
+                        scaleY = currentZoom
+                        transformOrigin = TransformOrigin(0f, 0f)
+                    }
                     .zIndex(100f)) {
                     ResizableTextBox(
                         box = draggedBox.copy(
@@ -2073,6 +2115,7 @@ internal fun PdfVerticalReader(
                         isDarkMode = isDarkMode,
                         pageWidthPx = draggingBoxSize.width,
                         pageHeightPx = draggingBoxSize.height,
+                        scale = currentZoom,
                         handlePosition = overlayHandlePos,
                         onBoundsChanged = {},
                         onTextChanged = {},

app/src/main/java/com/aryan/reader/pdf/TextAnnotationDock.kt

@@ -35,14 +35,11 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.heightIn
-import androidx.compose.foundation.layout.ime
-import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
@@ -118,7 +115,6 @@ import com.aryan.reader.R
 import com.aryan.reader.data.CustomFontEntity
 import timber.log.Timber
 import java.io.File
-import kotlin.math.max
 import kotlin.math.roundToInt
 
 private enum class ColorMenuMode {
@@ -176,18 +172,6 @@ fun TextAnnotationDock(
     val fontSizes = listOf(12.sp, 14.sp, 16.sp, 18.sp, 20.sp, 24.sp, 30.sp)
     val focusManager = LocalFocusManager.current
 
-    val density = LocalDensity.current
-    val imeBottom = WindowInsets.ime.getBottom(density)
-    val navBottom = WindowInsets.navigationBars.getBottom(density)
-    val spacerHeightPx = max(0, imeBottom - navBottom)
-    val spacerHeightDp = with(density) { spacerHeightPx.toDp() }
-
-    val effectiveSpacerHeight = if (spacerHeightDp > 0.dp) {
-        spacerHeightDp
-    } else {
-        bottomDockPadding
-    }
-
     LaunchedEffect(activePopup) {
         if (activePopup == ActivePopup.NONE) {
             activeMenuMode = ColorMenuMode.PALETTE
@@ -200,7 +184,7 @@ fun TextAnnotationDock(
 
             val dockBarHeight = 48.dp
             val margin = 8.dp
-            val finalOffsetY = -(effectiveSpacerHeight + dockBarHeight + margin)
+            val finalOffsetY = -(bottomDockPadding + dockBarHeight + margin)
 
             val isFocusable = activeMenuMode == ColorMenuMode.SPECTRUM || activePopup == ActivePopup.FONT_FAMILY
 
@@ -724,7 +708,7 @@ fun TextAnnotationDock(
                     }
                 }
             }
-            Spacer(modifier = Modifier.height(effectiveSpacerHeight))
+            Spacer(modifier = Modifier.height(bottomDockPadding))
         }
     }
 }

app/src/main/java/com/aryan/reader/ui/theme/Theme.kt

@@ -27,6 +27,7 @@ import androidx.compose.material3.darkColorScheme
 import androidx.compose.material3.dynamicDarkColorScheme
 import androidx.compose.material3.dynamicLightColorScheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
 import androidx.compose.ui.graphics.Color
 import com.materialkolor.PaletteStyle
 import androidx.compose.ui.platform.LocalContext
@@ -118,36 +119,58 @@ fun AppTheme(
     content: @Composable () -> Unit
 ) {
     val supportsDynamicColor = Build.VERSION.SDK_INT >= Build.VERSION_CODES.S
+    val context = LocalContext.current
 
-    val colorScheme = when {
+    val baseColorScheme = remember(
+        darkTheme, dynamicColor, supportsDynamicColor, seedColor, contrastLevel
+    ) {
+        when {
             seedColor != null -> dynamicColorScheme(
                 seedColor = seedColor,
                 isDark = darkTheme,
                 contrastLevel = contrastLevel,
                 style = PaletteStyle.Fidelity
             )
-
             dynamicColor && supportsDynamicColor -> {
-            val context = LocalContext.current
-            if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+                if (darkTheme) dynamicDarkColorScheme(context)
+                else dynamicLightColorScheme(context)
             }
             darkTheme -> darkScheme
             else -> lightScheme
         }
+    }
 
-    val finalColorScheme = colorScheme.copy(
-        onPrimary = colorScheme.onPrimary.copy(alpha = textDimFactor),
-        onSecondary = colorScheme.onSecondary.copy(alpha = textDimFactor),
-        onTertiary = colorScheme.onTertiary.copy(alpha = textDimFactor),
-        onBackground = colorScheme.onBackground.copy(alpha = textDimFactor),
-        onSurface = colorScheme.onSurface.copy(alpha = textDimFactor),
-        onSurfaceVariant = colorScheme.onSurfaceVariant.copy(alpha = textDimFactor),
-        onError = colorScheme.onError.copy(alpha = textDimFactor),
-        onPrimaryContainer = colorScheme.onPrimaryContainer.copy(alpha = textDimFactor),
-        onSecondaryContainer = colorScheme.onSecondaryContainer.copy(alpha = textDimFactor),
-        onTertiaryContainer = colorScheme.onTertiaryContainer.copy(alpha = textDimFactor),
-        onErrorContainer = colorScheme.onErrorContainer.copy(alpha = textDimFactor)
+    val finalColorScheme = remember(baseColorScheme, textDimFactor) {
+        if (textDimFactor >= 1.0f) {
+            baseColorScheme
+        } else {
+            baseColorScheme.copy(
+                primary = baseColorScheme.primary.copy(alpha = textDimFactor),
+                secondary = baseColorScheme.secondary.copy(alpha = textDimFactor),
+                tertiary = baseColorScheme.tertiary.copy(alpha = textDimFactor),
+                error = baseColorScheme.error.copy(alpha = textDimFactor),
+                primaryContainer = baseColorScheme.primaryContainer.copy(alpha = textDimFactor),
+                secondaryContainer = baseColorScheme.secondaryContainer.copy(alpha = textDimFactor),
+                tertiaryContainer = baseColorScheme.tertiaryContainer.copy(alpha = textDimFactor),
+                errorContainer = baseColorScheme.errorContainer.copy(alpha = textDimFactor),
+                outline = baseColorScheme.outline.copy(alpha = textDimFactor),
+                outlineVariant = baseColorScheme.outlineVariant.copy(alpha = textDimFactor),
+                inversePrimary = baseColorScheme.inversePrimary.copy(alpha = textDimFactor),
+                inverseOnSurface = baseColorScheme.inverseOnSurface.copy(alpha = textDimFactor),
+                onPrimary = baseColorScheme.onPrimary.copy(alpha = textDimFactor),
+                onSecondary = baseColorScheme.onSecondary.copy(alpha = textDimFactor),
+                onTertiary = baseColorScheme.onTertiary.copy(alpha = textDimFactor),
+                onBackground = baseColorScheme.onBackground.copy(alpha = textDimFactor),
+                onSurface = baseColorScheme.onSurface.copy(alpha = textDimFactor),
+                onSurfaceVariant = baseColorScheme.onSurfaceVariant.copy(alpha = textDimFactor),
+                onError = baseColorScheme.onError.copy(alpha = textDimFactor),
+                onPrimaryContainer = baseColorScheme.onPrimaryContainer.copy(alpha = textDimFactor),
+                onSecondaryContainer = baseColorScheme.onSecondaryContainer.copy(alpha = textDimFactor),
+                onTertiaryContainer = baseColorScheme.onTertiaryContainer.copy(alpha = textDimFactor),
+                onErrorContainer = baseColorScheme.onErrorContainer.copy(alpha = textDimFactor),
             )
+        }
+    }
 
     MaterialTheme(
         colorScheme = finalColorScheme,

app/src/main/res/values/themes.xml

@@ -1,5 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    <style name="Theme.Reader" parent="Theme.AppCompat.DayNight.NoActionBar" />
 
-    <style name="Theme.Reader" parent="android:Theme.Material.Light.NoActionBar" />
+    <!-- Modern Splash Screen Theme -->
+    <style name="Theme.App.Starting" parent="Theme.SplashScreen">
+        <!-- You can specify a background color here if needed, otherwise it defaults to the system's window background -->
+        <!-- <item name="windowSplashScreenBackground">#121212</item> -->
+        <item name="postSplashScreenTheme">@style/Theme.Reader</item>
+    </style>
 </resources>

app/src/main/res/xml/locales_config.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<locale-config xmlns:android="http://schemas.android.com/apk/res/android">
+    <locale android:name="en"/>
+    <locale android:name="ar"/>
+    <locale android:name="de"/>
+    <locale android:name="tr"/>
+</locale-config>