diff --git a/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfRendererView.kt b/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfRendererView.kt
index 0a06273..d841a87 100644
--- a/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfRendererView.kt
+++ b/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfRendererView.kt
@@ -27,7 +27,6 @@ import androidx.recyclerview.widget.DividerItemDecoration
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import androidx.recyclerview.widget.RecyclerView.NO_POSITION
-import com.rajat.pdfviewer.util.PdfEngine
 import java.io.File
 import java.io.FileNotFoundException
 
@@ -42,7 +41,6 @@ class PdfRendererView @JvmOverloads constructor(
     private lateinit var pageNo: TextView
     private lateinit var pdfRendererCore: PdfRendererCore
     private lateinit var pdfViewAdapter: PdfViewAdapter
-    private var engine = PdfEngine.INTERNAL
     private var showDivider = true
     private var divider: Drawable? = null
     private var runnable = Runnable {}
@@ -252,9 +250,6 @@ class PdfRendererView @JvmOverloads constructor(
     }
 
     private fun setTypeArray(typedArray: TypedArray) {
-        val engineValue =
-            typedArray.getInt(R.styleable.PdfRendererView_pdfView_engine, PdfEngine.INTERNAL.value)
-        engine = PdfEngine.values().first { it.value == engineValue }
         showDivider = typedArray.getBoolean(R.styleable.PdfRendererView_pdfView_showDivider, true)
         divider = typedArray.getDrawable(R.styleable.PdfRendererView_pdfView_divider)
         enableLoadingForPages = typedArray.getBoolean(R.styleable.PdfRendererView_pdfView_enableLoadingForPages, enableLoadingForPages)
diff --git a/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfViewerActivity.kt b/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfViewerActivity.kt
index b6271db..19186ce 100644
--- a/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfViewerActivity.kt
+++ b/pdfViewer/src/main/java/com/rajat/pdfviewer/PdfViewerActivity.kt
@@ -35,7 +35,6 @@ import com.rajat.pdfviewer.util.FileUtils.createPdfDocumentUri
 import com.rajat.pdfviewer.util.FileUtils.fileFromAsset
 import com.rajat.pdfviewer.util.FileUtils.uriToFile
 import com.rajat.pdfviewer.util.NetworkUtil.checkInternetConnection
-import com.rajat.pdfviewer.util.PdfEngine
 import com.rajat.pdfviewer.util.saveTo
 import java.io.File
 
@@ -68,7 +67,6 @@ class PdfViewerActivity : AppCompatActivity() {
         const val FILE_TITLE = "pdf_file_title"
         const val ENABLE_FILE_DOWNLOAD = "enable_download"
         const val FROM_ASSETS = "from_assests"
-        var engine = PdfEngine.INTERNAL
         var enableDownload = false
         var isPDFFromPath = false
         var isFromAssets = false
@@ -203,8 +201,6 @@ class PdfViewerActivity : AppCompatActivity() {
             false
         )
 
-        engine = PdfEngine.INTERNAL
-
         val typedArray = obtainStyledAttributes(R.styleable.PdfRendererView_Strings)
         error_pdf_corrupted =
             typedArray.getString(R.styleable.PdfRendererView_Strings_error_pdf_corrupted)
diff --git a/pdfViewer/src/main/java/com/rajat/pdfviewer/util/PdfEngine.kt b/pdfViewer/src/main/java/com/rajat/pdfviewer/util/PdfEngine.kt
deleted file mode 100644
index 65fb09d..0000000
--- a/pdfViewer/src/main/java/com/rajat/pdfviewer/util/PdfEngine.kt
+++ /dev/null
@@ -1,10 +0,0 @@
-package com.rajat.pdfviewer.util
-
-/**
- * Created by Rajat on 11,July,2020
- */
-
-enum class PdfEngine(val value: Int) {
-    INTERNAL(100),
-    GOOGLE(200)
-}
\ No newline at end of file
diff --git a/pdfViewer/src/main/res/values/attrs.xml b/pdfViewer/src/main/res/values/attrs.xml
index 8344d4b..290fb65 100644
--- a/pdfViewer/src/main/res/values/attrs.xml
+++ b/pdfViewer/src/main/res/values/attrs.xml
@@ -6,10 +6,6 @@
             <enum name="normal" value="2" />
             <enum name="enhanced" value="3" />
         </attr>
-        <attr name="pdfView_engine" format="enum">
-            <enum name="internal" value="100" />
-            <enum name="google" value="200" />
-        </attr>
         <attr name="pdfView_showDivider" format="boolean" />
         <attr name="pdfView_divider" format="reference" />
         <attr name="pdfView_enableLoadingForPages" format="reference|boolean" />