About Compare PDF
Find Every Change Between Two Versions
A contract comes back from the other side, a report gets a new revision, a supplier sends an updated price list. Reading both versions line by line is slow, and small edits are easy to miss. This tool finds them for you.
Side by Side, Scrolling Together
The original opens on the left and the new version on the right, like a desktop compare program. Scroll either one and the other follows, page for page.
Every Difference Highlighted
Removed words are boxed in red on the left, added words in green on the right, and replaced words in blue on both sides. A small marker shows where text was taken out or put in on the other side.
Jump From Change to Change
Use the next and previous buttons, the N and P keys, or the list of all differences to go straight to each change. Both documents scroll to it.
Word by Word, Not Pixel by Pixel
The text of both PDFs is compared word by word, so a sentence that moved to the next line or page because of an earlier edit is not reported as a change. Only the words that really changed are.
Private by Design
Both PDFs are read with PDF.js and compared on your device. Nothing is uploaded, so you can compare contracts, offers and other confidential documents safely.