How to render a PDF file in Android

Question

Android does not have PDF support in its libraries  Is there any way to render PDF files in the Android applications

User · Answer

I finally was able to modify butelo s code to open any PDF file in the Android filesystem using pdf js  The code can be found on my GitHub  What I did was modified the pdffile js to read HTML argument file like this    var url   getURLParameter  file     function getURLParameter name    return decodeURIComponent  new RegExp      amp      name              amp        amp           exec location search          1  replace     g    20     null    So what you need to do is just append the file path after the index html like this   Uri path   Uri parse Environment getExternalStorageDirectory   toString       data test pdf    webView loadUrl  file    android asset pdfviewer index html file     path     Update the path variable to point to a valid PDF in the Adroid filesystem

User · Answer

public class MyPdfViewActivity extends Activity       Override   protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       WebView mWebView new WebView MyPdfViewActivity this       mWebView getSettings   setJavaScriptEnabled true       mWebView getSettings   setPluginsEnabled true       mWebView loadUrl  quot https   docs google com gview embedded true amp url  quot  LinkTo       setContentView mWebView

User · Answer

I used the below code to open and print the PDF using Wi-Fi  I am sending my whole code  and I hope it is helpful   public class MainActivity extends Activity        int Result code   1        Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main           Button mButton    Button findViewById R id button1            mButton setOnClickListener new View OnClickListener                   Override             public void onClick View v                       TODO Auto-generated method stub                   PrintManager printManager    PrintManager getSystemService Context PRINT SERVICE                   String jobName      Document                   printManager print jobName  pda  null                                         public void openDocument String name             Intent intent   new Intent android content Intent ACTION VIEW           File file   new File name           String extension   android webkit MimeTypeMap getFileExtensionFromUrl Uri fromFile file  toString             String mimetype   android webkit MimeTypeMap getSingleton   getMimeTypeFromExtension extension           intent setFlags Intent FLAG ACTIVITY CLEAR TOP            if  extension equalsIgnoreCase        mimetype    null                   if there is no extension or there is no definite mimetype  still try to open the file             intent setDataAndType Uri fromFile file    text                        else               intent setDataAndType Uri fromFile file   mimetype                         custom message for the intent         startActivityForResult  Intent createChooser intent   Choose an Application      Result code             startActivityForResult intent  Result code             Toast makeText getApplicationContext    There are no email clients installed    Toast LENGTH SHORT  show                 SuppressLint  NewApi       PrintDocumentAdapter pda   new PrintDocumentAdapter              Override         public void onWrite PageRange   pages  ParcelFileDescriptor destination  CancellationSignal cancellationSignal  WriteResultCallback callback               InputStream input   null              OutputStream output   null               try                   String filename   Environment getExternalStorageDirectory               Holiday pdf                   File file   new File filename                   input   new FileInputStream file                   output   new FileOutputStream destination getFileDescriptor                      byte   buf   new byte 1024                   int bytesRead                   while   bytesRead   input read buf    gt  0                         output write buf  0  bytesRead                                      callback onWriteFinished new PageRange   PageRange ALL PAGES                              catch  FileNotFoundException ee                     Catch exception                           catch  Exception e                      Catch exception                           finally                   try                       input close                        output close                                      catch  IOException e                        e printStackTrace                                                        Override         public void onLayout PrintAttributes oldAttributes  PrintAttributes newAttributes  CancellationSignal cancellationSignal  LayoutResultCallback callback  Bundle extras                if  cancellationSignal isCanceled                      callback onLayoutCancelled                    return                               int pages   computePageCount newAttributes                PrintDocumentInfo pdi   new PrintDocumentInfo Builder  Name of file   setContentType PrintDocumentInfo CONTENT TYPE DOCUMENT  build                 callback onLayoutFinished pdi  true

User · Answer

There is no anyway to preview pdf document in Android webview If you want to preview base64 pdf  It requires to third-party library  build Gradle compile  com github barteksc android-pdf-viewer 2 7 0   dialog pdf viewer  lt  xml version  quot 1 0 quot  encoding  quot utf-8 quot   gt    lt LinearLayout xmlns android  quot http   schemas android com apk res android quot      android layout width  quot match parent quot      android layout height  quot match parent quot      android gravity  quot center horizontal quot      android orientation  quot vertical quot  gt        lt ImageView         android id  quot   id dialog pdf viewer close quot          style  quot  style ExitButtonImageViewStyle quot          android src  quot  drawable popup exit quot    gt        lt LinearLayout         android layout width  quot match parent quot          android layout height  quot 0dp quot          android layout weight  quot 1 quot          android background  quot  color white quot          android orientation  quot vertical quot  gt            lt com github barteksc pdfviewer PDFView             android id  quot   id pdfView quot              android layout width  quot match parent quot              android layout height  quot match parent quot    gt        lt  LinearLayout gt        lt View style  quot  style HorizontalLine quot    gt        lt com pozitron commons customviews ButtonFont         android id  quot   id dialog pdf viewer button quot          style  quot  style ButtonPrimary2 quot          android layout width  quot match parent quot          android layout height  quot wrap content quot          android padding  quot 15dp quot          android text  quot  string agreed quot    gt    lt  LinearLayout gt   DailogPDFViewer java public class DialogPdfViewer extends Dialog       PDFView pdfView      byte   decodedString       public interface OnDialogPdfViewerListener           void onAgreeClick DialogPdfViewer dialogFullEula            void onCloseClick DialogPdfViewer dialogFullEula              public DialogPdfViewer Context context  String base64  final DialogPdfViewer OnDialogPdfViewerListener onDialogPdfViewerListener            super context            setContentView R layout dialog pdf viewer           findViewById R id dialog pdf viewer close  setOnClickListener new View OnClickListener                  Override             public void onClick View v                    onDialogPdfViewerListener onCloseClick DialogPdfViewer this                                      findViewById R id dialog pdf viewer button  setOnClickListener new View OnClickListener                  Override             public void onClick View v                    onDialogPdfViewerListener onAgreeClick DialogPdfViewer this                                      decodedString   Base64 decode base64 toString    Base64 DEFAULT            pdfView     PDFView  findViewById R id pdfView            pdfView fromBytes decodedString  load             setOnKeyListener new OnKeyListener                  Override             public boolean onKey DialogInterface dialog  int keyCode  KeyEvent event                    if  keyCode    KeyEvent KEYCODE BACK  amp  amp  event getAction      KeyEvent ACTION DOWN                        onDialogPdfViewerListener onCloseClick DialogPdfViewer this                                     return true

User · Answer

you can use a simple method by import implementation  com github barteksc android-pdf-viewer 2 8 2   and the XML code is  lt com github barteksc pdfviewer PDFView         android id  quot   id pdfv quot          android layout width  quot match parent quot          android layout height  quot match parent quot  gt       lt  com github barteksc pdfviewer PDFView gt   and just declare and add a file to an asset folder and just assign the name    PDFView  pdfView findViewById R id pdfv              pdfView fromAsset  quot agl pdf quot   load

User · Answer

Since API Level 21  Lollipop  Android provides a PdfRenderer class      create a new renderer  PdfRenderer renderer   new PdfRenderer getSeekableFileDescriptor          let us just render all pages  final int pageCount   renderer getPageCount     for  int i   0  i  lt  pageCount  i           Page page   renderer openPage i            say we render for showing on the screen      page render mBitmap  null  null  Page RENDER MODE FOR DISPLAY            do stuff with the bitmap          close the page      page close            close the renderer  renderer close      For more information see the sample app   For older APIs I recommend Android PdfViewer library  it is very fast and easy to use  licensed under Apache License 2 0   pdfView fromAsset String     pages 0  2  1  3  3  3     all pages are displayed by default    enableSwipe true     swipeHorizontal false     enableDoubletap true     defaultPage 0     onDraw onDrawListener     onLoad onLoadCompleteListener     onPageChange onPageChangeListener     onPageScroll onPageScrollListener     onError onErrorListener     enableAnnotationRendering false     password null     scrollHandle null     load

User · Answer

Download the source code here  Display PDF file inside my android application  Add this dependency in your Grade  compile com github barteksc android-pdf-viewer 2 0 3 activity main xml  lt RelativeLayout android layout width  quot match parent quot      android layout height  quot match parent quot      android background  quot  ffffff quot      xmlns android  quot http   schemas android com apk res android quot   gt        lt TextView         android layout width  quot match parent quot          android layout height  quot 40dp quot          android background  quot  color colorPrimaryDark quot          android text  quot View PDF quot          android textColor  quot  ffffff quot          android id  quot   id tv header quot          android textSize  quot 18dp quot          android gravity  quot center quot  gt  lt  TextView gt        lt com github barteksc pdfviewer PDFView         android id  quot   id pdfView quot          android layout below  quot   id tv header quot          android layout width  quot match parent quot          android layout height  quot match parent quot   gt         lt  RelativeLayout gt   MainActivity java import android app Activity  import android database Cursor  import android net Uri  import android provider OpenableColumns  import android support v7 app AppCompatActivity  import android os Bundle  import android util Log  import android view View  import android widget ImageView  import android widget RelativeLayout   import com github barteksc pdfviewer PDFView  import com github barteksc pdfviewer listener OnLoadCompleteListener  import com github barteksc pdfviewer listener OnPageChangeListener  import com github barteksc pdfviewer scroll DefaultScrollHandle  import com shockwave pdfium PdfDocument   import java util List   public class MainActivity extends Activity implements OnPageChangeListener OnLoadCompleteListener      private static final String TAG   MainActivity class getSimpleName        public static final String SAMPLE FILE    quot android tutorial pdf quot       PDFView pdfView      Integer pageNumber   0      String pdfFileName        Override     protected void onCreate Bundle savedInstanceState            super onCreate savedInstanceState           setContentView R layout activity main             pdfView   PDFView findViewById R id pdfView           displayFromAsset SAMPLE FILE              private void displayFromAsset String assetFileName            pdfFileName   assetFileName           pdfView fromAsset SAMPLE FILE                   defaultPage pageNumber                   enableSwipe true                    swipeHorizontal false                   onPageChange this                   enableAnnotationRendering true                   onLoad this                   scrollHandle new DefaultScrollHandle this                    load                 Override     public void onPageChanged int page  int pageCount            pageNumber   page          setTitle String format  quot  s  s    s quot   pdfFileName  page   1  pageCount                 Override     public void loadComplete int nbPages            PdfDocument Meta meta   pdfView getDocumentMeta            printBookmarksTree pdfView getTableOfContents     quot - quot                public void printBookmarksTree List lt PdfDocument Bookmark gt  tree  String sep            for  PdfDocument Bookmark b   tree                 Log e TAG  String format  quot  s  s  p  d quot   sep  b getTitle    b getPageIdx                   if  b hasChildren                      printBookmarksTree b getChildren    sep    quot - quot

User · Answer

To add a little light to this  I would have to go with the pdf js solution from Mozilla  Here is the link to an already well written implementation of this  https   bitbucket org butelo pdfviewer    Here are the edits that I added in my Android Activity   private String getInternalPDFURL String interalPDFName       return  file    android asset pdfviewer index html pdf     interalPDFName     pdf       Here are the edits I made in pdffile js   var url           getPDFURL     function getPDFURL        var query   window location search substring 1       var vars   query split           var pdfPage   vars 1       return pdfPage

User · Answer

I have made a hybrid approach from some of the answers given to this and other similar posts   This solution checks if a PDF reader app is installed and does the following  - If a reader is installed  download the PDF file to the device and start a PDF reader app - If no reader is installed  ask the user if he wants to view the PDF file online through Google Drive  NOTE  This solution uses the Android DownloadManager class  which was introduced in API9  Android 2 3 or Gingerbread   This means that it doesn t work on Android 2 2 or earlier   I wrote a blog post about it here  but I ve provided the full code below for completeness   public class PDFTools       private static final String GOOGLE DRIVE PDF READER PREFIX    http   drive google com viewer url        private static final String PDF MIME TYPE    application pdf       private static final String HTML MIME TYPE    text html                   If a PDF reader is installed  download the PDF file and open it in a reader          Otherwise ask the user if he she wants to view it in the Google Drive online PDF reader  lt br   gt          lt br   gt          lt b gt BEWARE  lt  b gt  This method         param context         param pdfUrl         return             public static void showPDFUrl  final Context context  final String pdfUrl             if   isPDFSupported  context                   downloadAndOpenPDF context  pdfUrl             else               askToOpenPDFThroughGoogleDrive  context  pdfUrl                                    Downloads a PDF with the Android DownloadManager and opens it with an installed PDF reader app          param context         param pdfUrl              TargetApi Build VERSION CODES GINGERBREAD      public static void downloadAndOpenPDF final Context context  final String pdfUrl               Get filename         final String filename   pdfUrl substring  pdfUrl lastIndexOf          1               The place where the downloaded PDF file will be put         final File tempFile   new File  context getExternalFilesDir  Environment DIRECTORY DOWNLOADS    filename            if   tempFile exists                      If we have downloaded the file before  just go ahead and show it              openPDF  context  Uri fromFile  tempFile                  return                        Show progress dialog while downloading         final ProgressDialog progress   ProgressDialog show  context  context getString  R string pdf show local progress title    context getString  R string pdf show local progress content    true                Create the download request         DownloadManager Request r   new DownloadManager Request  Uri parse  pdfUrl              r setDestinationInExternalFilesDir  context  Environment DIRECTORY DOWNLOADS  filename            final DownloadManager dm    DownloadManager  context getSystemService  Context DOWNLOAD SERVICE            BroadcastReceiver onComplete   new BroadcastReceiver                  Override             public void onReceive Context context  Intent intent                    if    progress isShowing                           return                                    context unregisterReceiver  this                     progress dismiss                    long downloadId   intent getLongExtra  DownloadManager EXTRA DOWNLOAD ID  -1                    Cursor c   dm query  new DownloadManager Query   setFilterById  downloadId                       if   c moveToFirst                           int status   c getInt  c getColumnIndex  DownloadManager COLUMN STATUS                          if   status    DownloadManager STATUS SUCCESSFUL                             openPDF  context  Uri fromFile  tempFile                                                              c close                                     context registerReceiver  onComplete  new IntentFilter  DownloadManager ACTION DOWNLOAD COMPLETE                  Enqueue the request         dm enqueue  r                          Show a dialog asking the user if he wants to open the PDF through Google Drive         param context         param pdfUrl             public static void askToOpenPDFThroughGoogleDrive  final Context context  final String pdfUrl             new AlertDialog Builder  context                setTitle  R string pdf show online dialog title                setMessage  R string pdf show online dialog question                setNegativeButton  R string pdf show online dialog button no  null                setPositiveButton  R string pdf show online dialog button yes  new OnClickListener                      Override                 public void onClick DialogInterface dialog  int which                        openPDFThroughGoogleDrive context  pdfUrl                                                  show                          Launches a browser to view the PDF through Google Drive         param context         param pdfUrl             public static void openPDFThroughGoogleDrive final Context context  final String pdfUrl            Intent i   new Intent  Intent ACTION VIEW            i setDataAndType Uri parse GOOGLE DRIVE PDF READER PREFIX   pdfUrl    HTML MIME TYPE            context startActivity  i                         Open a local PDF file with an installed reader         param context         param localUri             public static final void openPDF Context context  Uri localUri             Intent i   new Intent  Intent ACTION VIEW            i setDataAndType  localUri  PDF MIME TYPE            context startActivity  i                         Checks if any apps are installed that supports reading of PDF files          param context         return             public static boolean isPDFSupported  Context context             Intent i   new Intent  Intent ACTION VIEW            final File tempFile   new File  context getExternalFilesDir  Environment DIRECTORY DOWNLOADS     test pdf             i setDataAndType  Uri fromFile  tempFile    PDF MIME TYPE            return context getPackageManager   queryIntentActivities  i  PackageManager MATCH DEFAULT ONLY   size    gt  0

[java] How to render a PDF file in Android

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