import 'package:flutter/material.dart'; import 'package:printing/printing.dart'; import 'khmer_pdf_service.dart'; class PdfViewerScreen extends StatelessWidget { const PdfViewerScreen({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar(title: const Text('របាយការណ៍ជា PDF')), body: PdfPreview( build: (format) async { final file = await KhmerPdfService.generateKhmerInvoice(); return file.readAsBytes(); }, allowPrinting: true, allowSharing: true, ), ); } } Use code with caution. ⚠️ Troubleshooting Common Issues
Double check your .ttf file. Some older Khmer legacy fonts do not support the current Unicode shaping rules. Always prefer Noto Sans Khmer or modern Khmer OS fonts. flutter khmer pdf updated
Using standard default fonts or incorrectly configuring the text-shaping engine will result in missing or broken characters. 🛠️ Essential Packages for PDF Generation import 'package:flutter/material
dependencies: flutter: sdk: flutter pdf: ^3.10.8 # core package for drawing PDFs printing: ^5.13.2 # for viewing and saving PDFs path_provider: ^2.1.2 # to access internal device storage Use code with caution. 🔡 Why Khmer Script Breaks in PDFs Some older Khmer legacy fonts do not support
Paste the downloaded .ttf file inside (e.g., assets/fonts/KhmerOS-Regular.ttf ). Register the asset in your pubspec.yaml : flutter: assets: - assets/fonts/KhmerOS-Regular.ttf Use code with caution. 💻 Step 2: Implement PDF Generator with Khmer Font
a valid Khmer Unicode font from Google Fonts (e.g., Battambang or Siemreap ).
Always cache the loaded font in memory if you are generating multi-page PDFs or running the process inside a loop.