from fpdf import FPDF pdf = FPDF() pdf.add_page() pdf.add_font('khmer', '', 'KhmerOS.ttf', uni=True) pdf.set_font('khmer', size=12) pdf.cell(0, 10, txt="ជំរាបសួរ", ln=1) pdf.output("fpdf_khmer.pdf")

with open("data.yaml", "w", encoding="utf-8") as f: yaml.dump(data, f, allow_unicode=True)

pangocairo_context.update_layout(layout) pangocairo_context.show_layout(layout) surface.finish() For scanned Khmer PDFs, convert to images then use Tesseract with Khmer language pack.

c = canvas.Canvas("khmer_sample.pdf", pagesize=A4) c.setFont('KhmerFont', 14) c.drawString(100, 750, "សួស្តីពិភពលោក") # "Hello World" in Khmer c.save() ⚠️ Ensure the TrueType font supports Khmer and is placed in your working directory. fpdf2 can embed Unicode fonts, but complex scripts like Khmer often break due to lack of proper shaping.

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.

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).

from reportlab.pdfgen import canvas from reportlab.lib.pagesizes import A4 from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont pdfmetrics.registerFont(TTFont('KhmerFont', 'KhmerOSBattambang-Regular.ttf'))

import cairo import pangocairo surface = cairo.PDFSurface("shaped_khmer.pdf", 200, 100) context = cairo.Context(surface) pangocairo_context = pangocairo.CairoContext(context) pangocairo_context.set_antialias(cairo.ANTIALIAS_SUBPIXEL)