pdf_util.dart

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import 'dart:convert';
import 'dart:io';
 
import 'package:open_filex/open_filex.dart';
import 'package:path_provider/path_provider.dart';
 
class PdfUtils {
  static Future<String> openBase64Pdf(
      String base64String, String fileName) async {
    try {
      // Decode the base64 string
      final List<int> bytes = base64.decode(base64String);
 
      // Get temporary directory for file storage
      final Directory tempDir = await getTemporaryDirectory();
 
      // Create file in temporary directory
      final File file = File('${tempDir.path}/$fileName');
 
      // Write decoded bytes to file
      await file.writeAsBytes(bytes);
 
      // Open the PDF file
      final result = await OpenFilex.open(file.path);
 
      if (result.type != ResultType.done) {
        throw Exception('Could not open the file: ${result.message}');
      }
 
      return file.path;
    } catch (e) {
      throw Exception('Failed to process PDF: $e');
    }
  }
}