Compare Two PDFs Side by Side Free

Review contract versions and revisions with two PDFs side by side and scroll locked together. Private, instant, free.

Free forever · No watermark · No signup · Files never leave your device. Use it right below — the interactive tool loads with this page.

How to use Compare PDFs

1. Upload both PDF versions
2. Pages render side by side
3. Scroll either side — they stay synced
4. No download needed; it is a viewer

Frequently asked questions

Are differences highlighted automatically?

You view both versions side by side with synced scrolling — ideal for careful contract review.

Do the files upload?

No. Both render locally, so confidential redlines never leave your machine.

Can I compare scanned PDFs?

Yes — scans render as images. For text comparison, OCR them first.

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