Khmer script (អក្សរខ្មែរ) presents unique challenges when generating or extracting PDFs programmatically. Unlike Latin-based scripts, Khmer requires correct rendering of subscripts, diacritics, and vowel ordering. Python offers several libraries to handle these tasks, but careful font and encoding choices are critical. 1. Generating PDFs with Khmer Text Using reportlab Reportlab is a powerful PDF generation library, but it does not natively support complex script shaping. To generate correct Khmer PDFs:
from pypdf import PdfReader reader = PdfReader("khmer_document.pdf") for page in reader.pages: print(page.extract_text()) Khmer requires reordering of vowels and diacritics. Use pyftsubset + harfbuzz (via weasyprint or cairo ) for proper shaping. python khmer pdf
create_khmer_report("data.yaml", "report.pdf") This guide gives you a complete foundation for handling tasks — from creation and extraction to rendering and OCR. Always test with real Khmer text and use fonts that support the full Unicode range for Khmer (U+1780 to U+17FF, plus U+19E0–U+19FF). Use pyftsubset + harfbuzz (via weasyprint or cairo
layout = pangocairo_context.create_layout() layout.set_text("កម្ពុជា") layout.set_font_description(pango.FontDescription("Khmer OS 12")) encoding="utf-8") as f: yaml.dump(data
with open("data.yaml", "w", encoding="utf-8") as f: yaml.dump(data, f, allow_unicode=True)
with open(data_yaml, 'r', encoding='utf-8') as f: content = yaml.safe_load(f)
Example using cairo and Pango (Linux/macOS):