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Online Multi Tools
PDF

Compare PDF

View two PDFs side by side with visual diff.

Runs in your browser Private Free forever

How to use

  1. Load both PDFs

    Drop PDF A into the left panel and PDF B into the right panel.

  2. Browse pages in sync

    Use the page controls to step through both PDFs simultaneously.

  3. Enable Diff mode

    Toggle "Diff mode" to overlay a pixel-level highlight of differences between the two pages.

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Frequently Asked Questions

Is Compare PDF free to use?
Yes, Compare PDF is completely free. No account, no signup, and no payment is ever required.
Does Compare PDF send my data to a server?
No. Compare PDF runs entirely in your browser. Your data is never uploaded to any server — all processing happens locally on your device.