Advanced PDF Viewer

A high-performance, feature-rich PDF viewer for Flutter with advanced annotation tools and native support for Arabic/RTL text rendering.

Screenshot

Features

🚀 High Performance: Uses virtualized rendering (RecyclerView on Android) to handle large PDF files smoothly with minimal memory footprint.
🇸🇦 Arabic & RTL Support: Built-in Arabic text shaping and BiDi reordering ensures Arabic annotations look perfect and connected.
✏️ Advanced Annotations:
- Free-hand Drawing: Smooth pen tool for sketching and signing.
- Text Notes: Add text anywhere on the page with font embedding support.
- Highlight & Underline: Precise markup tools.
🧲 Snap-to-Text: Highlights and underlines automatically detect and snap to the nearest text line for perfect alignment.
💾 Save & Persistence: Save modified PDFs with your annotations baked in. Supporting mixed language (Arabic/English) text embedding.
🔒 Secure Storage: Option to load PDFs without caching or saving to local storage (Stream-to-Temp-Transfer).
🔢 Page Counter: Optional page numbering support on both Android and iOS.
🛡️ Enhanced Security: Disables copying, sharing, and other text interactions on iOS to protect content.
🛠️ Customizable Toolbar: Easy-to-use toolbar with Undo/Redo support and full-screen mode.

Getting started

Add the package to your pubspec.yaml:

dependencies:
  advanced_pdf_viewer:

Android Setup

Add internet and storage permissions to your AndroidManifest.xml if you plan to load network PDFs or save to storage:

<uses-permission android:name="android.permission.INTERNET" />

Usage

Simple Usage

import 'package:advanced_pdf_viewer/advanced_pdf_viewer.dart';

// Load from Network
AdvancedPdfViewer.network('https://example.com/sample.pdf')

// Load from Bytes
AdvancedPdfViewer.bytes(pdfUint8List)

// Load Securely (No Local Storage)
AdvancedPdfViewer.network(
  'https://example.com/sensitive.pdf',
  useCache: false, // File is deleted immediately after opening
)

Advanced Usage with Controller

final controller = AdvancedPdfViewerController();

AdvancedPdfViewer.network(
  'https://example.com/sample.pdf',
  controller: controller,
  config: PdfViewerConfig(
    toolbarColor: Colors.blueAccent,
    showTextButton: true,
    onFullScreenInit: () => print('Entered Full Screen'),
  ),
)

// Later, you can call methods on the controller
void _save() async {
  final bytes = await controller.savePdf();
  // Save bytes to file...
}

Repository

Find the source code and contribute at: https://github.com/AhmadAbbas8/advanced_pdf_viewer

Configuration

The PdfViewerConfig class allows you to customize the behavior and appearance of the viewer.

Property	Description	Default
`toolbarColor`	Background color of the toolbar	`Colors.white`
`drawColor`	Primary color for the drawing tool	`Colors.red`
`highlightColor`	Color used for text highlighting	`Colors.yellow`
`showUndoButton`	Enable/Disable the undo button	`true`
`allowFullScreen`	Show full screen toggle	`true`
`enablePageNumber`	Show page number indicator	`false`

License

This project is licensed under the MIT License - see the LICENSE file for details.