How to use this tool
- Choose your file or try the example.
- Run the tool and check the result.
- Save the result where a download is available.
Supported features & limits
Select the old PDF first, then the new one. Compares extracted text, not page appearance. Scans need OCR elsewhere first. Maximum 2 files and 10 MB total; up to 100 pages each.
What happens to my files?
Your browser reads the file locally. File contents are not sent to our server. Closing or resetting this page clears the working result. Downloaded copies remain on your device.
Maintained by Roman Zmazhenko. Updated 1 November 2026.