ReportLab is powerful for complex layouts but requires manual font registration for Khmer.
Mastering Python Khmer PDF Processing: A Verified Guide Working with Khmer Unicode in PDFs using Python requires specialized handling due to the script's complex rendering requirements, such as and vowel positioning . This guide provides verified methods for generating and extracting Khmer text in PDF format. 1. Generating Khmer PDFs with Python python khmer pdf verified
To correctly render Khmer script, you must use a library that supports (integrating characters into correct glyph sequences) and embed a compatible Khmer font. Using fpdf2 (Recommended) ReportLab is powerful for complex layouts but requires
: Use pdfmetrics.registerFont to load your .ttf file before drawing strings. fpdf2 is a modern library that supports HarfBuzz-based
fpdf2 is a modern library that supports HarfBuzz-based text shaping, essential for Khmer script. : Install the library: pip install fpdf2 .
: Older versions may struggle with advanced Khmer shaping without additional plugins like uharfbuzz . 2. Extracting Khmer Text from PDFs
from fpdf import FPDF pdf = FPDF() pdf.add_page() # Register and set the Khmer font pdf.add_font("KhmerOS", fname="KhmerOS.ttf") pdf.set_font("KhmerOS", size=14) # CRITICAL: Enable text shaping for correct rendering pdf.set_text_shaping(True) pdf.write(8, "សួស្តី ពិភពលោក (Hello World)") pdf.output("khmer_verified.pdf") ``` Use code with caution. Using ReportLab