Compare two PDFs
Open two PDFs side by side and flip through page previews in your browser. A Pro convenience for reviewing revisions.
Free up to 20 MB · files automatically deleted · see Pro for 200 MB
How to compare pdfs
- 1Drop exactly two PDFs.
- 2Flip pages side by side in the browser.
- 3No upload — previews stay on this device.
Free plan
Processed in your browser – nothing uploaded.
Files are processed temporarily and automatically deleted. Limits are shown before processing. Corrupted or unsupported files stop with a clear error.
Compare PDFs when you need a quick visual check of a revised contract. Pages render locally with pdf.js. It is not a legal redline tool.
Guides: Merge PDF online free · How to compress a PDF · All articles
Questions about compare pdfs
Does this produce a diff file?
No. It is a visual side-by-side preview, not a textual diff.
Is it free?
Preview is available to try; Pro removes the daily cap when you use it often.