Spot the differences between two PDF files.
Spot the differences between two PDF files. Compare PDF runs entirely in your web browser, so your file is processed on your own device and is never uploaded to MyPDFMate.
Answers to the questions people ask most about using Compare PDF.
Open Compare PDF on MyPDFMate, upload the original and the revised PDF, and click Compare PDF. You'll download a report where every changed area is painted red, plus a page-by-page summary.
Yes. Acrobat's Compare Files feature needs a paid Pro plan. MyPDFMate's Compare PDF is free with no sign-up.
It renders each page of both files and compares them pixel by pixel, so it catches changed words, numbers, images, signatures and formatting.
No. It highlights visual differences on the page rather than producing a text redline, which makes it quick to spot what changed at a glance.
Pages are compared in order, and extra pages in one file show up as fully changed.
When text is added early in a document, everything after it shifts down, so later lines no longer line up. Different page sizes cause the same effect. Look for where the highlighting starts.
Open each PDF in its own browser window and snap them next to each other (on Windows, press Windows + Left/Right arrow). To skip the side-by-side squinting, Compare PDF paints every difference in red for you.
AI chatbots can summarize wording differences between two documents, but they can miss changes in numbers, images or layout. Compare PDF checks every page pixel by pixel, so visual changes can't slip through.
Convert the Word file with Word to PDF first, then compare the two PDFs.
Yes, but small differences in scan alignment and quality show up as changes, so results are clearest with digital PDFs.
Yes. It's a fast way to confirm that a returned contract matches the version you sent and to spot any edits you weren't told about.
No. Both PDFs are compared in your browser and are processed in your browser.