Compare PDF
Compare two PDFs online
Compare two versions of a document side by side: removed words in red, added words in green, plus an optional visual pixel diff.
Free, no account. Compare PDF runs in your browser on this page. Your files are processed on Folio's own server and deleted automatically after 6 hours.
Shows removed words in red and added words in green, with an optional visual pixel diff.
How to compare two PDFs with Folio
- Open Compare PDF on this page, or pick it from the list of all tools on the Folio home page.
- Add your files: drop them on the page or click to pick them.
- Set the options you need, such as compare and visual diff resolution (dpi).
- Run it and download the result. When there are several output files you can download them together as a ZIP.
What you can set
- Compare
- Visual diff resolution (DPI)
Files it accepts
PDF.
Compare PDF: questions and answers
How do I compare two PDF files for differences?
Add the two versions and run Compare PDF. Removed words are shown in red and added words in green; the visual mode also highlights changed pixels. To look at them next to each other, use Compare side by side.
Is Compare PDF free?
Yes. Compare PDF on Folio is free, with no account, no sign-up and no watermark on the result.
Are my files safe?
Your files are processed on Folio's own server only to run the tool, and deleted automatically after 6 hours. There is no account, so they are not linked to you.
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