Are my documents uploaded to compare them?

No. Both files are processed entirely in your browser and never leave your device.

Can I compare a PDF against a Word file?

Convert the Word file to PDF first (the Office to PDF tool does it), then compare the two PDFs.

Yes, completely free, with no account and no sign-up.

How to compare two PDF files

Someone sends back 'the same contract with small changes' — the question is which changes. Comparing two PDFs side by side, page against page, shows you where the versions differ so nothing slips through unread.

Open Compare PDF

Step by step

1Open the Compare PDF tool and drop in both versions of the document.
2Step through the documents side by side, page against page.
3Note the differences — and keep both originals until the review is done.

Why compare instead of re-reading

Re-reading a 30-page document to find three edited sentences is how changes get missed. A side-by-side view keeps both versions aligned so your eye only has to catch what differs, not re-process what didn't change.

It's especially worth it for contracts and agreements, where a single changed word ('may' to 'shall', a date, a number) is the entire negotiation.

Comparing sensitive documents

Version comparison is most often needed exactly when the document is confidential — contracts, offers, legal drafts. That's a bad moment to upload both versions to a stranger's server.

This comparison runs entirely in your browser: both files are processed on your own device and never leave it.

FAQ

Are my documents uploaded to compare them?: No. Both files are processed entirely in your browser and never leave your device.
Can I compare a PDF against a Word file?: Convert the Word file to PDF first (the Office to PDF tool does it), then compare the two PDFs.
Is it free?: Yes, completely free, with no account and no sign-up.

Ready? Open Compare PDF →