PDF
Compare Two PDFs
Pick two PDFs: every page is shown side by side and compared pixel by pixel, with the differences marked in red. Everything runs in your browser and no file is ever uploaded.
Frequently asked questions
How are the differences shown?
The two files are compared pixel by pixel right in your browser and everything that changed is highlighted in red, with nothing sent to a server.
Is this tool really free?
Yes — completely free, with no sign-up, no ads and no artificial limits.
Are my files kept or shared?
No. All processing happens directly in your browser: your file is never uploaded to our servers, stored, or shared. It never leaves your device.
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