ocr_flutter_web 1.0.0

A Flutter web plugin to extract text from images and PDF files using Tesseract.js and PDF.js. Supports English and Hindi with auto-rotation.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:file_picker/file_picker.dart';
import 'package:ocr_flutter_web/ocr_flutter_web.dart';

void main() {
  runApp(const MyApp());
}

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

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

class _MyAppState extends State<MyApp> {
  final _ocrFlutterWebPlugin = OcrFlutterWeb();
  String _extractedText = '';
  bool _isLoading = false;

  Future<void> _pickFile() async {
    try {
      final result = await FilePicker.platform.pickFiles(
        type: FileType.custom,
        allowedExtensions: ['jpg', 'png', 'jpeg', 'pdf'],
        withData: true,
      );

      if (result != null && result.files.single.bytes != null) {
        setState(() {
          _isLoading = true;
          _extractedText = '';
        });

        final file = result.files.single;
        final text = await _ocrFlutterWebPlugin.extractText(
          file.bytes!,
          filename: file.name,
          // language: 'eng+hin',
          language: 'eng',
        );

        print('extracted text: $text');

        setState(() {
          _extractedText = text;
          _isLoading = false;
        });
      }
    } catch (e) {
      setState(() {
        _extractedText = 'Error executing OCR: $e';
        _isLoading = false;
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('OCR Web Plugin Demo'),
        ),
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(24.0),
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                ElevatedButton(
                  onPressed: _isLoading ? null : _pickFile,
                  child: const Text('Upload Image or PDF'),
                ),
                const SizedBox(height: 20),
                if (_isLoading) const CircularProgressIndicator(),
                if (!_isLoading && _extractedText.isNotEmpty)
                  Expanded(
                    child: SingleChildScrollView(
                      child: SelectableText(
                        _extractedText,
                        style: const TextStyle(fontSize: 16),
                      ),
                    ),
                  ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}