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Compare PDF
Spot every difference between two PDFs with a visual page-by-page diff.
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Your file never leaves your browser
No signup required
No daily limit
Always free
How to use Compare PDF
- 1
Upload your file
Drag and drop your file onto the upload area, or click to browse your device.
- 2
Choose options
Configure any settings you need, then click the process button.
- 3
Download result
Your processed file is ready instantly. Click Download to save it.
Frequently Asked Questions
Each page of both PDFs is rendered in your browser and compared pixel by pixel. Differences are highlighted in red so you can see exactly what changed.
No. The comparison runs entirely in your browser. Your PDFs never leave your device.
Extra pages are shown as fully changed against a blank page, so you can see additions and deletions at a glance.
Yes. Each page's diff image can be downloaded individually as a PNG.