Compare PDF files locally
Side-by-side PDF diff in your browser with synced scrolling and private local processing.
Original document
Updated document
Original document
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Side-by-side PDF diff in your browser with synced scrolling and private local processing.
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DiffPaper gives you a focused way to compare two PDF files when you need to inspect revisions, approvals, exports, or client feedback copies. The workflow stays local in the browser, which is useful when the documents are sensitive or cannot be uploaded to a third-party service.
Upload the original PDF and the updated PDF to inspect additions, removals, and modified passages in parallel panels. DiffPaper keeps the old and new versions aligned so reviewers can see what changed without manually jumping between files.
PDF comparison is often needed after a document leaves the editable draft stage. DiffPaper is well suited for exported contracts, final proposal PDFs, approved policy packs, and review-ready versions sent between teams or vendors.
Because DiffPaper compares PDF files locally in the browser, you can keep the review flow inside your own environment. That reduces friction when documents contain pricing, legal language, or internal draft changes.
Yes. DiffPaper shows two PDFs side by side and helps you move through differences from a single diff list.
No. PDF files are processed locally in the browser during comparison.
A PDF diff tool is useful for reviewing exported contracts, final reports, proposal versions, and approval copies where you need to confirm exactly what changed.