Compare PDFs

Diff two PDF documents and highlight added / removed text — page by page.

Drop PDF A or click
Drop PDF B or click
How it works
  • Text is extracted from every page of both PDFs using pypdf
  • Python's built-in difflib computes a line-by-line diff — no external service
  • Added lines are highlighted green, removed lines red
  • The report is saved as a standalone HTML file you can open, share, or archive
  • Works best on text-based PDFs; scanned images require OCR first