PDF Processing Advanced Reference

# PDF Processing Advanced Reference This document contains advanced PDF processing features, detailed examples, and additional libraries not covered in the main skill instructions. ## pypdfium2 Library (Apache/BSD License) ### Overview pypdfium2 is a Python binding for PDFium (Chromium's PDF library). It's excellent for fast PDF rendering, image generation, and serves as a PyMuPDF replacement. ### Render PDF to Images ```python import pypdfium2 as pdfium from PIL import Image # Load PDF pdf = pdfium.PdfDocument("document.pdf") # Render page to image page = pdf[0] # First page bitmap = page.render( scale=2.0, # Higher resolution rotation=0 # No rotation ) # Convert to PIL Image img = bitmap.to_pil() img.save("page_1.png", "PNG") # Process multiple pages for i, page in enumerate(pdf): bitmap = page.render(scale=1.5) img = bitmap.to_pil() img.save(f"page_{i+1}.jpg", "JPEG", quality=90) ``` ### Extract Text with pypdfium2 ```python import pypdfium2 as pdfium