Compare PDF
Instantly identify what changed between two versions of a document. Our PDF comparison engine extracts text from both files and presents a colour-coded diff — additions in green, deletions in red — making reviews fast and accurate.
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Files stay strictly on your device. Zero server uploads.
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Local browser WebAssembly & JS processing engine.
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Unlimited usage with no hidden fees or watermarks.
How to Compare PDF Files
Upload File A
Upload the original PDF document.
Upload File B
Upload the revised PDF document.
Compare
Click Compare to generate the diff.
Review
Examine highlighted changes in the side-by-side view.
Frequently Asked Questions
Currently, comparison is text-based. Visual layout differences are not highlighted.
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