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Compare PDF Documents
Spot pixel differences and text modifications between two PDF documents side-by-side offline.
100% Offline Comparison
Select Document A (Original)
Drag & drop or click to upload PDF
Select Document B (Modified)
Drag & drop or click to upload PDF
Compare Mode:
Page 1 of 1
Processing documents...
Version A (Original)
Page not present
Visual Differences
Red = Shifts
Version B (Modified)
Page not present
Version A Text Modifications
Version B Text Modifications
Frequently Asked Questions
Quick direct-answer guides about using this utility tool locally and securely.
What modes of PDF comparison are supported?
We support two comparison modes: "Visual Diff" (renders page pairs onto canvases and highlights pixel differences in red) and "Text Diff" (extracts page text contents and highlights word additions and deletions).
Can I compare PDFs with different page counts?
Yes. The comparison tool handles different page counts and lets you toggle page-by-page to inspect differences across the document length.
Are my document versions safe during comparison?
Yes. Both documents are parsed and compared inside your browser RAM. No files are uploaded to any external server.