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Compare PDFs

Compare two PDFs side by side.

First PDF

Click or drop

Second PDF

Click or drop

About Compare PDFs

Compare PDFs shows two documents side by side and highlights what changed between versions — useful for contracts and drafts.

How to use it

  1. Select the original and the revised PDF.
  2. Choose text or visual comparison.
  3. Review the highlighted differences.

Your file stays on your device

This tool runs entirely in your browser. Your file is read from your device, processed in memory, and saved back to your device — it is never uploaded to QPDF or anyone else. Once this page has loaded, the tool also works with your internet connection switched off.

How QPDF keeps files private →

Good to know

  • Comparison is a review aid. Read critical documents in full before relying on them.

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