Compare PDF
Find visual changes between two PDF versions.
A fresh start for your PDFs.
Drag PDF files here and let’s make something happen.
Only on your device. Always in your control.
How to compare PDF
- 1
Choose exactly two PDF versions.
- 2
Move through the paired pages and inspect highlighted differences.
- 3
Download a report with the comparison images.
About this tool
Compare matching page numbers side by side and inspect a pixel difference overlay. Small rendering differences can be flagged too. This is a visual comparison, not a semantic text diff.
On your device
Your document is processed in this browser. Files and passwords are never uploaded.
Free to use
No account, added watermark or daily task quota.
Know what to expect
Compare matching page numbers side by side and inspect a pixel difference overlay. Small rendering differences can be flagged too. This is a visual comparison, not a semantic text diff.
Compare PDF FAQ
How does Compare PDF work?
Compare matching page numbers side by side and inspect a pixel difference overlay. Small rendering differences can be flagged too. This is a visual comparison, not a semantic text diff.
Are my files uploaded?
No. Document processing runs locally. Your browser downloads the required engines and fonts, but does not send your document to a processing server.