How to convert a PDF page to an image in Android?

Question

All I need to do is take a (locally saved) PDF-document and convert one or all of it\'s pages to image format like JPG or PNG.

I\'ve tr

Answer 1

from below code, you can extract all pages as image (PNG) format from PDF using PDFRender:

// This method is used to extract all pages in image (PNG) format.
    private void getImagesFromPDF(File pdfFilePath, File DestinationFolder) throws IOException {

        // Check if destination already exists then delete destination folder.
        if(DestinationFolder.exists()){
            DestinationFolder.delete();
        }

        // Create empty directory where images will be saved.
        DestinationFolder.mkdirs();

        // Reading pdf in READ Only mode.
        ParcelFileDescriptor fileDescriptor = ParcelFileDescriptor.open(pdfFilePath, ParcelFileDescriptor.MODE_READ_ONLY);

        // Initializing PDFRenderer object.
        PdfRenderer renderer = new PdfRenderer(fileDescriptor);

        // Getting total pages count.
        final int pageCount = renderer.getPageCount();

        // Iterating pages
        for (int i = 0; i < pageCount; i++) {

            // Getting Page object by opening page.
            PdfRenderer.Page page = renderer.openPage(i);

            // Creating empty bitmap. Bitmap.Config can be changed.
            Bitmap bitmap = Bitmap.createBitmap(page.getWidth(), page.getHeight(),Bitmap.Config.ARGB_8888);

            // Creating Canvas from bitmap.
            Canvas canvas = new Canvas(bitmap);

            // Set White background color.
            canvas.drawColor(Color.WHITE);

            // Draw bitmap.
            canvas.drawBitmap(bitmap, 0, 0, null);

            // Rednder bitmap and can change mode too.
            page.render(bitmap, null, null, PdfRenderer.Page.RENDER_MODE_FOR_DISPLAY);

            // closing page
            page.close();

            // saving image into sdcard.
            File file = new File(DestinationFolder.getAbsolutePath(), "image"+i + ".png");

            // check if file already exists, then delete it.
            if (file.exists()) file.delete();

            // Saving image in PNG format with 100% quality.
            try {
                FileOutputStream out = new FileOutputStream(file);
                bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
                Log.v("Saved Image - ", file.getAbsolutePath());
                out.flush();
                out.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

You can call this method in below way:

// Getting images from Test.pdf file.
        File source = new File(Environment.getExternalStorageDirectory() + "/" + "Test" + ".pdf");

        // Images will be saved in Test folder.
        File destination = new File(Environment.getExternalStorageDirectory() + "/Test");

        // Getting images from pdf in png format.
        try {
            getImagesFromPDF(source, destination);
        } catch (IOException e) {
            e.printStackTrace();
        }

Cheers!