Compare PDF
Drop two PDFs to view them side-by-side with page-level difference highlighting. Everything runs in your browser.
Original PDF
Drop the original PDF
One PDF, up to 100 MB
or click to browse
Modified PDF
Drop the modified PDF
One PDF, up to 100 MB
or click to browse
How to compare two PDFs side by side
Spot differences between two versions of a PDF.
- 1
Open Compare PDF
Visit makemypdf.com/compare-pdf.
- 2
Upload both PDFs
Drop version A on the left side and version B on the right side.
- 3
Walk through the pages
Each page is shown side-by-side with differences highlighted so you can scan quickly.
Frequently asked questions
Does comparison happen in-browser?
Yes. Both PDFs are rendered with PDF.js locally and compared on your device.
Will it catch formatting-only changes?
Yes. The side-by-side render makes formatting shifts visually obvious even when the text content matches.
Can I export the comparison?
The tool is designed for visual review. For a shareable diff report, capture screenshots from the compare view.