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Tools · Compare PDFs

Compare PDFs

Spot the differences between two versions of a PDF. Processing happens in your browser.

Document A
Choose a file
Document B
Choose a file

Processed on your device. Your files never leave it.

Add both files to compare.

See at a glance what changes between two versions of a document: differences are highlighted page by page. Everything happens in your browser.

  • Comparison 100% client-side: nothing is uploaded.
  • Differences highlighted, report ready to download.
  • Free, no sign-up, no watermark.

See also

Compress a PDF
Shrink the size, keep the quality.
Merge PDFs
Combine several files into one.
Split a PDF
Extract or separate pages.
Delete pages
Remove pages from a PDF.

Frequently asked questions

How do I compare two PDF files to see the differences?
Upload both versions of the document, start the comparison, and the differences between the files are highlighted so you can quickly spot what changed.
Does this help check two versions of a contract?
Yes. The comparison is useful for reviewing the changes between two versions of the same document, for example a contract or a revised report.
Are my two files sent online?
No. The comparison happens 100% in your browser, your two PDF files do not leave your device and are not sent to any server.
Is comparing two PDF files free and registration-free?
Yes, the tool is free, ad-free and requires no account. You can compare your documents freely.