Compare two PDF files

Spot every text change between two versions.

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PDF · multiple files

Which clause changed in the revised contract? Compare PDF extracts the text of both versions and highlights every insertion and deletion, page by page, so nothing slips past you. Export the comparison as a standalone HTML report to share with colleagues.

How to compare two PDF files

  1. Add the original PDF first, then the revised one.
  2. Press Compare.
  3. Review highlighted changes and download the report if needed.

Good to know

  • Comparison is text-based: it finds wording changes, not layout or image changes.
  • Scanned PDFs have no text to compare – run OCR PDF on both first.

Frequently asked questions

Does the order of files matter?

Yes. The first file is treated as the original, so text only in the second appears as added.

Can it compare Word documents?

Convert them with Word to PDF first, then compare.

Is there a size limit?

No fixed limit; very long documents simply take a little longer.

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