PDFpdfnest

Compare PDFs Online — Find Text Differences

Compare the text of two PDFs side by side and see exactly which words were added or removed. Free and processed in your browser.

Original

Click to select a file

or drop it here

PDF

Revised

Click to select a file

or drop it here

PDF

How to compare two PDFs

  1. 1Select the original PDF and the revised PDF.
  2. 2Click Compare — the text of both files is extracted locally.
  3. 3Review the inline diff: removed words are red, added words are green.

FAQ

Does Compare work on scanned PDFs?

No — scanned pages are images without a text layer. Run them through OCR first (planned, needs our future backend).

Is the diff word-level or character-level?

Word-level, which reads much more naturally for document revisions.

Are my files uploaded anywhere?

No — both files are parsed and diffed entirely in your browser.

Can I compare more than two files?

Currently two at a time: an original and a revision.