Compare PDFs

Compare two PDFs in your browser. We read the text on each page and show what was added or removed. Files stay on your device.

First PDF

  1. Upload
  2. Options
  3. Process
  4. Download

This file stays on this device.

No watermarks

Second PDF

  1. Upload
  2. Options
  3. Process
  4. Download

This file stays on this device.

No watermarks

How to compare PDFs

  1. Choose the first PDF, or drop it into the left box.
  2. Choose the second PDF on the right.
  3. Click Compare. Text is read in your browser.
  4. Read the line diff. Added lines start with + and removed lines start with −.

Features

Private

Both files stay on your device. We do not upload them to compare.

Text diff

We compare extracted words, not pixels. Scans without text need OCR first.

Free to start

5 free jobs a day. Upgrade to Pro for larger files and more daily jobs.

Files stay local

This tool does not store your PDFs on our servers.

Page counts

You see how many pages each file has and how many text lines changed.

Works in the browser

Use it from any modern browser on Windows, Mac, or Linux.

When to compare PDFs

Use this when you have two versions of a contract, report, or form and need to see wording changes.

The comparison uses extracted text. Layout, fonts, and images are not compared. Empty scans will look identical until you run OCR.

Both files stay on your computer. One job is counted when the comparison finishes.