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Compare PDFs

Compare two versions of a PDF side by side and highlight every changed word and pixel. Your documents never leave your device.

No uploads

Original

Changed

How to use Compare PDFs

  1. 1Open Compare PDFs. It runs in your browser, no sign-up.
  2. 2Drop your file here or choose it. It stays on your device; nothing is uploaded.
  3. 3Adjust the options until the preview looks right.
  4. 4Download the result.

Questions

What is compared?

Text view shows every added and removed word across the whole document. Visual view overlays each page and colours the pixels that changed — useful for layout, images and scans.

What do the colours mean?

Green/red in text view are added/removed words. In visual view, red marks content only in the new PDF and blue marks content only in the original.

Are my PDFs uploaded?

No. Both files are compared inside your browser.

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