Compare Two PDFs
Render two PDFs side by side to spot differences.
Drop both PDFs
or click to browse · Files stay private
Comparing two PDFs helps you spot exactly what changed between versions — a revised contract clause, an edited report, an updated form. Instead of reading both documents line by line, a visual comparison surfaces the differences for you so nothing slips through.
Because the comparison happens locally in your browser, both versions stay on your own device. That matters when the documents are sensitive, such as legal redlines or financial statements, where uploading either copy to a third party would defeat the purpose.
How to Use
Upload both PDFs
Drop the first PDF, then the second PDF onto the respective upload zones.
Compare
Click Compare — changes are highlighted across both documents.
Review differences
Navigate through flagged differences using the change navigator.
Frequently Asked Questions
What types of differences are detected?
Text additions, deletions, and moves are highlighted. Image-only changes are flagged visually at the page level.
Can I compare very long documents?
Yes — comparison is done page by page so even long documents are handled, though performance depends on device speed.