Compare two PDF versions without sending them online
Compare two PDFs to spot differences between versions of a contract or document — in the browser, no upload.
Published on 4 min readby Hamza El Hajjaji
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Table of contents
Two versions, one gap to find
The client returns a “reviewed” contract, the vendor sends a “fixed v2”, the administration publishes an updated form: what changed is exactly what needs checking, word for word. Reading both documents side by side is slow and error-prone — automatic comparison isolates the differences.
Comparing contract versions with an online service means sending both documents — often confidential — to a third party. Local comparison processes both files in the browser: nothing transits, the diff displays without exposure.
What comparison spots
Text added, removed or reworded between versions.
Pages present in one version and absent from the other.
Structural changes detectable in the content.
Completing the analysis
For a full audit between two versions, cross-reference the comparison with metadata inspection — author, modification dates — and text extraction to quote diverging passages.
No store, no account: a two-click install, double-click to open a PDF, Android share target, and a full offline mode once you have visited the site online once.
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ARZOPA — 15.6″ USB-C portable monitorPlug-and-play second screen (~900 g): the PDF file on one side, the draft on the other.affiliate
Fellowes Office Suites — A4 copyholderHolds up to 150 sheets at eye level for typing or comparing.affiliate
