void main() async // Create a new PDF document final pdf = FlutterKhmerPdfDocument();
If a widget falls back to Helvetia or another default Western font, Khmer characters will turn into unreadable rectangles ( ☐☐☐ ). Ensure every pw.Text widget explicitly inherits your assigned pw.ThemeData or has its font style parameter set manually.
print('PDF saved to $file.path');
Standard PDF libraries often fail spectacularly with Khmer—resulting in broken diacritics, missing vowels, or corrupted text. Here is how to approach this problem effectively.
Future<void> generateKhmerPdf() async final htmlContent = ''' <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <style> body font-family: 'Khmer OS', 'Noto Sans Khmer', sans-serif; padding: 20px;
import 'package:pdf/pdf.dart';
This code generates a simple Khmer PDF with the text "សេចក្តីផ្តើម" (Introduction).
If you are looking for reports or educational materials written in Khmer about Flutter:
Older versions of Flutter occasionally suffered from clipped text or broken vowel rendering when using Khmer fonts like Kantumruy or Khmer OS .
// 1. Load the Khmer font final fontData = await rootBundle.load('assets/fonts/KhmerFont.ttf'); final ttf = pw.Font.ttf(fontData.buffer.asByteData());
Create a new Dart file, for example khmer_pdf_page.dart :
Khmer text often fails if consonants with subscript signs ("Coeng" - ្) are not processed properly. If you see broken characters or boxes, the issue is likely that the PDF generator isn't correctly shaping the text.
Khmer is a complex script. Unlike Latin characters, Khmer characters do not just sit side-by-side. They wrap around each other, use subscript feet (ជើងអក្សរ), and require precise vowel and diacritic placement above or below base consonants.