Compare PDF
Compare two PDF versions and get a report with every visual difference highlighted in red — all in your browser.
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Process another fileHow it works
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Add the two PDFs to compare, then download a highlighted comparison PDF.
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Your files never leave your browser
Unlike most online tools, veryfreePDF processes everything locally on your device. Nothing is uploaded, stored or read by anyone — your documents stay private.
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Frequently asked questions
How are the differences shown?
You get a PDF where every page is overlaid with the changed areas highlighted in red, and each page is labelled as identical or modified.
Does it compare the text or the appearance?
The appearance, pixel by pixel. That catches moved images, changed fonts and layout shifts, not just edited words.
Is it really free?
Yes. Compare PDF is 100% free with no account, no watermark and no file limit. A short ad supports the service when you download.
Are my files uploaded to a server?
No. Everything runs locally in your browser — your documents never leave your device, which keeps them private.