PDF Compare
Compare two PDF files
Drop or select the original file
File loaded
Drop or select the modified file
File loaded
Difference level:
Differences
Original
Modified (differences in red)
Page of
How to Use PDF Compare
1
Upload Two PDFs
Upload the original PDF and the modified version you want to compare.
2
View Side by Side
Both documents are displayed side by side with differences highlighted in red.
3
Review Differences
Navigate through pages and see exactly what changed between the two versions.
Frequently Asked Questions
Each page is rendered as an image and compared pixel-by-pixel. Differences are highlighted in red overlay so you can quickly spot changes.
The comparison is visual/pixel-based, which catches all differences including text changes, image modifications, layout shifts, and formatting changes.
Pages are compared in order. Extra pages in either document are shown as entirely different (all highlighted).
Yes, you can download a comparison report showing the highlighted differences for each page.
Free users can compare documents up to 50 pages. The comparison works entirely in your browser.