How Can I Render PDF Files in Android Applications?

Rendering PDF Files in Android: Exploring Options

Although Android's libraries lack native PDF support, there are several approaches to render PDF files within Android applications.

PdfRenderer: API Level 21 and Above

Android 5.0 (Lollipop) introduced the PdfRenderer class, providing a robust solution for rendering PDF pages. The code below demonstrates its usage:

// Initialize the renderer
PdfRenderer renderer = new PdfRenderer(getSeekableFileDescriptor());

// Loop through all pages
for (int i = 0; i < renderer.getPageCount(); i++) {
    // Open the page
    Page page = renderer.openPage(i);

    // Render the page
    page.render(bitmap, null, null, Page.RENDER_MODE_FOR_DISPLAY);

    // Use the rendered bitmap

    // Close the page
    page.close();
}

// Close the renderer
renderer.close();

Android PdfViewer Library

For older Android versions, the Android PdfViewer library offers an alternative. Its simplified interface streamlines PDF rendering:

pdfView.fromAsset("file.pdf")
  .pages(0, 2, 1, 3, 3, 3) // Example page selection
  .enableSwipe(true)
  .load();

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