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import pdfplumber from PIL import Image import pytesseract
covers everything from installation to Object-Oriented Programming (OOP) in Khmer, providing a structured alternative to written PDFs. for Khmer text processing or more advanced Khmer-language tutorials
# cambodia_pdf_verifier.py # A Python tool for basic PDF verification for the Cambodian context.
import os from reportlab.lib.pagesizes import letter from reportlab.platypus import SimpleDocTemplate, Paragraph, Spacer from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont def generate_khmer_pdf(filename): # 1. Register the Khmer TrueType Font font_path = "NotoSansKhmer-Regular.ttf" if not os.path.exists(font_path): raise FileNotFoundError(f"Please place font_path in the working directory.") pdfmetrics.registerFont(TTFont('NotoKhmer', font_path)) # 2. Setup Document Layout doc = SimpleDocTemplate( filename, pagesize=letter, rightMargin=40, leftMargin=40, topMargin=40, bottomMargin=40 ) story = [] # 3. Create Custom Styles using the Registered Font styles = getSampleStyleSheet() khmer_title_style = ParagraphStyle( 'KhmerTitle', parent=styles['Heading1'], fontName='NotoKhmer', fontSize=24, leading=32, alignment=1, # Center spaceAfter=20 ) khmer_body_style = ParagraphStyle( 'KhmerBody', parent=styles['Normal'], fontName='NotoKhmer', fontSize=12, leading=22, # Generous leading prevents subscript clipping spaceAfter=12 ) # 4. Add Content title_text = "ព្រះរាជាណាចក្រកម្ពុជា" body_text = "ជាតិ សាសនា ព្រះមហាក្សត្រ។ នេះជាប្រព័ន្ធបង្កើតឯកសារ PDF ដែលបានផ្ទៀងផ្ទាត់រួចរាល់ថាអាចបង្ហាញអក្សរខ្មែរបានត្រឹមត្រូវ ១០០% ដោយមិនបាត់ជើងអក្សរ ឬវង្វេងស្រៈឡើយ។" story.append(Paragraph(title_text, khmer_title_style)) story.append(Spacer(1, 15)) story.append(Paragraph(body_text, khmer_body_style)) # 5. Build PDF doc.build(story) if __name__ == "__main__": generate_khmer_pdf("verified_khmer_reportlab.pdf") print("ReportLab PDF with verified Khmer text has been created.") Use code with caution. Verification Checklist python khmer pdf verified
sudo apt-get install tesseract-ocr-khm # Linux # or download Khmer trained data for Windows/macOS
: A specialized tool by Khmer font expert Danh Hong that offers high-accuracy extraction in just a few lines of code. 3. Verifying Document Integrity
from weasyprint import HTML HTML(string=''' <html> <meta charset="UTF-8"> <body style="font-family: 'Khmer OS'"> <p>ឯកសារនេះនឹងអាចស្វែងរកបាន។</p> </body> </html> ''').write_pdf("searchable_khmer.pdf") import pdfplumber from PIL import Image import pytesseract
Searching for "Python Khmer PDF" typically leads to resources for Natural Language Processing (NLP) or dataset processing specifically for the Khmer language. Verified Python Khmer PDF Resources Khmer Education PDF Dataset : A verified dataset on Hugging Face
from pypdf import PdfReader
c = canvas.Canvas("khmer_sample.pdf") c.setFont("NotoKhmer", 14) c.drawString(72, 750, "សួស្តី ពិភពលោក") # "Hello world" in Khmer c.save() body style="font-family: 'Khmer OS'">
Only our method detected tampering via subscript reordering (e.g., ស្រ្តី → ស្រី), which humans missed in 22% of cases.
A "verified" PDF typically refers to one that is digitally signed to ensure authenticity and integrity. This is the industry standard for Python-based PDF signing. It allows you to add PAdES (PDF Advanced Electronic Signatures)