You need fpdf2 and uharfbuzz (which handles the complex layout logic). pip install fpdf2 uharfbuzz Use code with caution. Copied to clipboard 2. Get a Compatible Khmer Font
import pdfplumber import re def verify_khmer_pdf_content(pdf_path): with pdfplumber.open(pdf_path) as pdf: full_text = "" for page in pdf.pages: full_text += page.extract_text() or "" # Regex range for the Khmer Unicode Block (\u1780 to \u17FF) khmer_range = re.compile(r'[\u1780-\u17ff]+') found_khmer = khmer_range.findall(full_text) print("--- Extracted Text Preview ---") print(full_text[:500]) print("------------------------------") if found_khmer: print(f"Verification Success: Document contains len(found_khmer) verified Khmer character sequences.") return True else: print("Verification Failure: No valid Khmer Unicode characters detected.") return False # Run verification script verify_khmer_pdf_content("verified_khmer_output.pdf") Use code with caution. Summary Checklist for Verified Success
A lightweight alternative to ReportLab that features strong UTF-8 and complex script support.
The industry standard for creating and verifying digitally signed, secure PDFs in Python. Step-by-Step Guide: Generating Khmer PDFs python khmer pdf verified
To fix this, you need a setup that combines , a text-shaping engine (like HarfBuzz), and a compatible PDF generation library . The Solution Architecture
Whether you are primarily trying to from scratch or extract/verify text from existing ones?
Note: Always verify the source of the PDF to ensure it doesn't contain malware, especially if it is a direct download link from an unverified website. You need fpdf2 and uharfbuzz (which handles the
Working with Khmer Unicode can be complex due to its specific script rules, such as subscript consonants and vowel placement.
If you choose fpdf2 , you need to enable text shaping explicitly:
return full_text
: A professional-grade engine, though it requires more manual setup for complex shaping. Step-by-Step Guide: Creating Khmer PDFs with fpdf2 1. Install Requirements
If your "verified" requirement refers to , researchers have developed KhmerWriterID , a deep learning model (CNN/RNN) achieving over 99% accuracy in identifying specific Khmer handwriting styles.
Check that vowels sitting on top (ដូចជា ិ, ី, ឹ, ឺ) or below (ុ, ូ, ួ) do not drift to the right or left of their base letter. Get a Compatible Khmer Font import pdfplumber import
Run your input strings through Python's unicodedata.normalize('NFC', text) to eliminate hidden duplicate vowels or broken character orders before passing them to the PDF engine.
But the memoir kept failing verification at page 47.