diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index dcf0c60..30b5cf0 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -68,7 +68,7 @@ dependencies {
     debugImplementation(libs.ui.tooling)
     debugImplementation(libs.ui.test.manifest)
 
-    // Room Database
+    // Room Database - TAMBAHKAN INI SEMUA
     val roomVersion = "2.6.1"
     implementation("androidx.room:room-runtime:$roomVersion")
     implementation("androidx.room:room-ktx:$roomVersion")
@@ -91,7 +91,4 @@ dependencies {
 
     // Gson
     implementation("com.google.code.gson:gson:2.10.1")
-
-    // PDF Support
-    implementation("com.tom-roush:pdfbox-android:2.0.27.0")
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/example/notebook/api/GeminiApiService.kt b/app/src/main/java/com/example/notebook/api/GeminiApiService.kt
index 824688a..1e57b01 100644
--- a/app/src/main/java/com/example/notebook/api/GeminiApiService.kt
+++ b/app/src/main/java/com/example/notebook/api/GeminiApiService.kt
@@ -15,7 +15,7 @@ import java.util.concurrent.TimeUnit
  */
 interface GeminiApiService {
 
-    @POST("v1beta/models/gemini-2.0-flash:generateContent")
+    @POST("v1beta/models/gemini-1.5-flash:generateContent")
     suspend fun generateContent(
         @Query("key") apiKey: String,
         @Body request: GeminiRequest
diff --git a/app/src/main/java/com/example/notebook/utils/FileHelper.kt b/app/src/main/java/com/example/notebook/utils/FileHelper.kt
index 413b657..1c97023 100644
--- a/app/src/main/java/com/example/notebook/utils/FileHelper.kt
+++ b/app/src/main/java/com/example/notebook/utils/FileHelper.kt
@@ -76,27 +76,11 @@ object FileHelper {
     }
 
     /**
-     * Baca text dari file (support Text, Markdown, dan PDF)
+     * Baca text dari file
      */
     fun readTextFromFile(filePath: String): String? {
         return try {
-            val file = File(filePath)
-            val extension = file.extension.lowercase()
-
-            when (extension) {
-                "pdf" -> {
-                    // Extract text dari PDF
-                    PdfHelper.extractTextFromPdf(filePath)
-                }
-                "txt", "md", "markdown" -> {
-                    // Baca text biasa
-                    file.readText()
-                }
-                else -> {
-                    println("⚠️ Format file tidak didukung untuk ekstraksi teks: $extension")
-                    null
-                }
-            }
+            File(filePath).readText()
         } catch (e: Exception) {
             e.printStackTrace()
             null
diff --git a/app/src/main/java/com/example/notebook/utils/PdfHelper.kt b/app/src/main/java/com/example/notebook/utils/PdfHelper.kt
deleted file mode 100644
index c2fc1bf..0000000
--- a/app/src/main/java/com/example/notebook/utils/PdfHelper.kt
+++ /dev/null
@@ -1,93 +0,0 @@
-package com.example.notebook.utils
-
-import android.content.Context
-import android.net.Uri
-import com.tom_roush.pdfbox.android.PDFBoxResourceLoader
-import com.tom_roush.pdfbox.pdmodel.PDDocument
-import com.tom_roush.pdfbox.text.PDFTextStripper
-import java.io.File
-
-/**
- * Helper untuk extract text dari PDF
- */
-object PdfHelper {
-
-    /**
-     * Initialize PDFBox (panggil sekali saat app start)
-     */
-    fun initialize(context: Context) {
-        PDFBoxResourceLoader.init(context)
-    }
-
-    /**
-     * Extract text dari PDF file
-     * Return: Text content atau null jika error
-     */
-    fun extractTextFromPdf(filePath: String): String? {
-        return try {
-            val file = File(filePath)
-            val document = PDDocument.load(file)
-
-            val stripper = PDFTextStripper()
-            val text = stripper.getText(document)
-
-            document.close()
-
-            // Cleanup whitespace
-            text.trim()
-        } catch (e: Exception) {
-            println("❌ Error extract PDF: ${e.message}")
-            e.printStackTrace()
-            null
-        }
-    }
-
-    /**
-     * Extract text dari PDF URI (sebelum disimpan)
-     */
-    fun extractTextFromPdfUri(context: Context, uri: Uri): String? {
-        return try {
-            val inputStream = context.contentResolver.openInputStream(uri)
-            val document = PDDocument.load(inputStream)
-
-            val stripper = PDFTextStripper()
-            val text = stripper.getText(document)
-
-            document.close()
-            inputStream?.close()
-
-            text.trim()
-        } catch (e: Exception) {
-            println("❌ Error extract PDF from URI: ${e.message}")
-            e.printStackTrace()
-            null
-        }
-    }
-
-    /**
-     * Get info PDF (jumlah halaman, dll)
-     */
-    fun getPdfInfo(filePath: String): PdfInfo? {
-        return try {
-            val file = File(filePath)
-            val document = PDDocument.load(file)
-
-            val info = PdfInfo(
-                pageCount = document.numberOfPages,
-                title = document.documentInformation.title ?: "Unknown",
-                author = document.documentInformation.author ?: "Unknown"
-            )
-
-            document.close()
-            info
-        } catch (e: Exception) {
-            null
-        }
-    }
-}
-
-data class PdfInfo(
-    val pageCount: Int,
-    val title: String,
-    val author: String
-)
\ No newline at end of file