Compare · free, in your browser

Compare two PDF files

Two versions of the same PDF look alike. Compare reads the text of both, page by page, and shows what changed; or it lays the pages over each other and boxes the differences.

Compare two PDFs

How to do it

1. Drop the two PDFs on the page, the original first. Or use Open… on A and on B.
2. The text of every page is compared: changed words are marked, and each part says which page it is on.
3. For drawings, stamps or layout changes, choose PDF view: Pages in the panel. Each page is drawn as a picture and the changed areas are boxed.
4. Pick a page from the list, or use Next to jump to the next page that changed.
5. Choose Export to download a report as HTML or PDF.

Your files stay on this device: Compare runs in your browser, with no upload, no account and no watermark.

Questions

Is anything uploaded?

No. Both files are read by the page in your browser and never leave your device.

Can it compare scanned PDFs?

A scan has no text, so compare its pages as pictures (PDF view: Pages). To compare the words of a scan, read it with OCR first.

How many pages?

The text of every page. As pictures, the first 40 pages.

Does it work with password-protected PDFs?

Not while locked. Remove the password in File Converter or PDF Editor first.

More with Compare

• Compare two texts and see what changed
• Compare two images and find the differences
• Compare two JSON or CSV files

Related apps

• File Converter
  Preview
  Images, PDFs, data and text, converted on your device.
• PDF Editor
  Available
  Organise, edit and sign PDFs. Nothing uploaded.
• OCR
  Beta
  Read text from images and scanned PDFs on your device. Nothing uploaded.