Compare two PDF documents

Spot what changed between two versions of a contract, report or policy.

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Works in your browser

Tool

What you get with the Compare PDF

Line-by-line changes

See exactly which lines were added and which were removed.

Page references

Each change shows which page it appears on.

Printable report

Save the comparison as a PDF report to share or file.

Confidential

Both versions are compared in your browser and never uploaded.

How to use the Compare PDF

  1. Choose the original PDF and the changed PDF.
  2. Click Compare documents.
  3. Review additions and removals, or print the report as PDF.

Questions

What is compared?

The text of both documents, line by line. Changes to images, colours or layout are not detected.

Does it work with scanned PDFs?

No, scanned pages have no text layer to compare.

How do I compare two Word documents?

Save both versions as PDF (File, then Save As, then PDF in Word or Google Docs), then compare the two PDFs here.

Can I compare long documents?

Yes. Up to 2,500 lines of text per document are compared line by line; for longer files the report tells you that only the first part was compared.

Install DocNova

The app is free, opens like a normal app, and works offline for tools you've used.