Compare PDF
See a word-level diff between two versions of a PDF, page by page.
File A (original)
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File B (changed)
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Select one file
Information
How to use Compare PDF
Upload the original as File A and the revised version as File B, then review the word-level differences page by page.
Why it helps
Spot exactly what changed in a contract redline instead of reading both versions side by side.
No installation required
Nothing to download — Merge, Split, Organize, and the rest of this group run right in your browser tab.
Your files stay private
Page order and content changes happen on this server for the length of the request only — nothing is kept afterward.
Works on any device
Works the same on a laptop, a Chromebook, or a tablet — anywhere you can open a browser and drag a file in.
Frequently asked questions
How do I compare two versions of a PDF?
Upload the original as File A and the revised version as File B — differences are highlighted word by word, page by page.
Does PDF comparison catch formatting changes, or just text?
The comparison is text-based, so it catches added, removed, or changed wording — it does not flag purely visual/formatting changes.
Can I compare a scanned PDF to a text-based one?
Comparison relies on extractable text, so a scanned page with no text layer may not compare accurately unless it has been run through OCR first.