Compare PDF
Spot every change between two versions of a document. Your file never leaves your device — it is processed in your browser.
Compare two PDFs
Add the original and the changed version, then compare text or visuals.
Pages are matched by number: page 1 with page 1, page 2 with page 2, and so on.
Your file is ready
How it works
Add two PDFs
Choose the original and the revised version of the document.
Pick a mode
Text comparison by words, or a visual pixel comparison.
Review the changes
See differences page by page and download a report.
About the Compare PDF tool
Compare PDF shows exactly what changed between two versions of a document — a contract before and after negotiation, two drafts of a report or an updated price list. In text mode the words of each page are compared and the differences are shown side by side: removed words are highlighted in red on the original, added words in green on the new version.
Visual mode renders the same page of both files and highlights every pixel that differs, which catches changes text comparison cannot see, such as moved images, logos, signatures, colours or layout shifts. You can download the text comparison as an HTML report to keep or share. Both documents are processed only in your browser and are never uploaded.
100% private: your file never leaves your device — it is processed in your browser. No upload, no storage, no account.
What you get
Word-level diff
Added and removed words, page by page.
Visual compare
Pixel differences highlighted on the page.
HTML report
Download the comparison to keep or share.
Never uploaded
Both PDFs stay on your device.