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Compare PDF

Compare two versions of a document and see exactly what changed — every added, edited and removed word.

Drop the two versions to compare

or browse from your device — the original and the new version (or one at a time)

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Compare two PDF files — every change, marked on the page

Did they change the contract? What's different in the new version of the report? Drop the original and the new version and they're compared word by word. The new version opens in the Mega AI Studio with every difference marked on the page: added words in green, reworded passages in amber, and a red mark where something was removed — with a comment holding the old text. The Compare window lists every change with its page, so you can jump straight to it, filter added, changed and removed, and download the marked-up PDF as a review copy for colleagues or clients.

Word by word

Every addition, change and removal, even in long documents.

Marked on the page

Green added, amber changed, red removed — with the old text.

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Download the marked-up PDF to send or archive.

Frequently asked questions

You can upload your file, convert it and keep editing in the AI Studio before you pay anything. Downloading the finished file is part of every MojoPDF plan — start with the 7-day trial for $1 and cancel any time.