Compare two PDFs
Spot in an instant what changed between two versions of a document: additions in green, deletions in red, changed words highlighted.
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🔒 Processed on your device, never uploaded
∞ Unlimited: no limit on file size or number of files
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Preview
How do I compare two versions of a PDF to see what changed?
Add the old version and then the new one to Lunyce, start the comparison, and read the differences on screen or download the report: additions in green, deletions in red, changed words highlighted. The comparison covers the text, not images or layout. Both files stay on your device, and it is free with no sign-up.
How to
- Add both PDFs (old version, then new).
- Start the comparison.
- Read the differences on screen or download the report.
Frequently asked questions
Are images and layout compared?
The comparison covers the text, line by line then word by word. Changes to images or to layout alone are not detected.
Are my files uploaded to a server?
No. Processing happens entirely in your browser, on your device. No file is uploaded or stored. You can check: once the page has loaded, disconnect from the internet and the tool still works.
Is there a file size or number limit?
No. Since nothing goes through our servers, there is no quota. The only limit is your device's memory: a computer handles very large files more easily than a phone.
Is it really free?
Yes. No sign-up, no watermark added to your documents and no usage limit.