Compare PDF
Put two versions side by side and see every word that was added or removed.
- 100% freeNo sign-up needed
- Works in your browserNo upload to a server
- Secure and privateFiles stay on your device
Add your two PDF files
Drop your files anywhere on this page, or choose them from your device.
- Processed on your deviceNothing is uploaded
- No file size limitUse as much as you need
- No waitingNo upload or download step
- Safe and privateYour files never leave your device
How to compare two PDFs
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Add both versions
Add the original PDF and the revised PDF.
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Read the changes
Read the changes page by page: removed words in red, added words in blue.
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Compare the pages
Switch to "Pages side by side" to spot changes in pictures and layout, or download a report.
See what changed between two versions
Check a revised contract or report against the original without reading both. Add the two PDFs and every page is compared: removed words are shown in red and added words in blue. Switch to the side-by-side view to spot changes in pictures and layout, and download a PDF report of the differences. Both documents stay on your device.
Good to know
Answers to common questions about Compare PDF.
What does it compare?
The text of each page, word by word, and the appearance of each page in the side-by-side view.
Does the order of the files matter?
The first file is treated as the original and the second as the revised version. Use Swap to switch them.
Is my file uploaded anywhere?
No. Compare PDF runs inside your browser tab and your file never leaves your device. Close the tab and nothing remains.
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