advanced_pdf_viewer 0.13.0

A high-performance PDF viewer for Flutter with support for Arabic text rendering, RTL reordering, and advanced annotations (draw, text, highlight, underline) with snap-to-text.

example/lib/main.dart

import 'dart:developer';

import 'package:flutter/material.dart';
import 'package:advanced_pdf_viewer/advanced_pdf_viewer.dart';
import 'dart:typed_data';
import 'package:http/http.dart' as http;

void main() {
  runApp(
    MaterialApp(
      theme: ThemeData(
        useMaterial3: true,
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.blue),
      ),
      home: const MyApp(),
    ),
  );
}

class MyApp extends StatefulWidget {
  const MyApp({super.key});

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String? _url;
  Uint8List? _bytes;
  final AdvancedPdfViewerController _controller = AdvancedPdfViewerController();

  Future<void> _loadNetworkPdf() async {
    setState(() {
      _bytes = null;
      _url = 'https://easy.easy-stream.net/pdfs/d3982bb2-9eec-4167-9194-dfea5082022e.pdf';
      // _url ='https://easy.easy-stream.net/pdfs/7070626f-9557-4331-b152-faf7cf76a0fc.pdf';
      // _url =
      //     'https://easy.easy-stream.net/pdfs/c05d15da-c41b-4858-9afe-defb0a693312.pdf';
      // _url= 'https://easy.easy-stream.net/pdfs/3f7d29e1-6d89-413f-ae83-f3086bafe565.pdf';
      // _url= 'https://easy.easy-stream.net/pdfs/73bdf5e6-f4d6-44d3-9148-14f08a8f3219.pdf';
    });
  }

  Future<void> _loadBytesPdf() async {
    // For demo, we'll download it first and then use bytes
    final response = await http.get(
      Uri.parse(
        'https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf',
      ),
    );
    setState(() {
      _url = null;
      // _bytes = response.bodyBytes;
    });
  }

  Future<void> _savePdf() async {
    final data = await _controller.savePdf();

    if (data != null) {
      setState(() {
        _bytes = Uint8List.fromList(data);
        _url = null; // Switch to displaying bytes
      });
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('PDF Saved! Data length: ${data.length}')),
      );
    }
  }

  @override
  Widget build(BuildContext context) {
    // log("zoom is ${_controller.setZoom(scale)}");
    return Scaffold(
      appBar: AppBar(
        title: const Text('Advanced PDF Viewer'),
        actions: [
          IconButton(
            icon: const Icon(Icons.cloud_download),
            onPressed: _loadNetworkPdf,
            tooltip: 'Load Network PDF',
          ),
          IconButton(
            icon: const Icon(Icons.data_object),
            onPressed: _loadBytesPdf,
            tooltip: 'Load Bytes PDF',
          ),
          if (_url != null || _bytes != null) ...[
            IconButton(
              icon: const Icon(Icons.save),
              onPressed: _savePdf,
              tooltip: 'Save PDF',
            ),
          ],
        ],
      ),



      // floatingActionButton: Column(
      //   mainAxisAlignment: MainAxisAlignment.end,
      //   children: [
      //     FloatingActionButton(
      //       heroTag: 'text',
      //       onPressed: () async {
      //         await _controller.addTextAnnotation(
      //           "Programmatic Text",
      //           100.0,
      //           200.0,
      //           0, // pageIndex
      //           color: Colors.purple,
      //         );
      //       },
      //       tooltip: 'Add Programmatic Text',
      //       child: const Icon(Icons.text_fields),
      //     ),
      //     const SizedBox(height: 10),
      //     FloatingActionButton(
      //       heroTag: 'page',
      //       onPressed: () async {
      //         final total = await _controller.getTotalPages();
      //         log("Total pages: $total");
      //         if (total > 0) {
      //           await _controller.jumpToPage(1);
      //           if (mounted) {
      //             ScaffoldMessenger.of(context).showSnackBar(
      //               SnackBar(content: Text('Jumped to last page of $total')),
      //             );
      //           }
      //         }
      //       },
      //       tooltip: 'Jump to Last Page',
      //       child: const Icon(Icons.last_page),
      //     ),
      //   ],
      // ),
   
   
   
   
      body: _url == null && _bytes == null
          ? const Center(child: Text('Pick a source to load PDF'))
          : Column(
              children: [
                Expanded(
                  child: _url != null
                      ? AdvancedPdfViewer.network(
                          _url!,
                          controller: _controller,

                          key: ValueKey(_url),
                          config: PdfViewerConfig(
                            showTextButton: true,
                            drawColor: Colors.red,
                            allowFullScreen: false,
                            showZoomButtons: true,
                            toolbarColor: Colors.white,
                            enablePageNumber: true,
                            
                            language: PdfViewerLanguage.arabic,

                            onFullScreenInit: () {
                              log('full screen initialized');
                            },
                            showBookmarkButton: true,
                            enableBookmarks: true,
                            showBookmarksListButton: true,
                            
                            // showToolbarSettings: false,
                            toolbarStyle: PdfToolbarStyle(
                              // activeColor: Colors.red,
                              // inactiveColor: Colors.black,
                              // useBlur: true,
                              // blurSigma: 100,
                              // backgroundColor: Colors.orange,
                              // elevation: 20,
                            ),

                            // bookmarkStorageKey: ,
                            highlightColor: Color(
                              0x8000FF00,
                            ), // Semi-transparent green
                          ),
                        )
                      : AdvancedPdfViewer.bytes(
                          _bytes!,
                          controller: _controller,

                          key: ValueKey(_bytes.hashCode),
                          config: PdfViewerConfig(
                            showTextButton: false,
                            drawColor: Colors.red,
                            allowFullScreen: false,
                            showZoomButtons: false,
                            enablePageNumber: true,
                            language: PdfViewerLanguage.arabic,

                            onFullScreenInit: () {
                              print("Entered full screen!");
                            },
                          ),
                        ),
                ),
              ],
            ),
    );
  }
}