Compare PDFs
Compare two PDF files and find every text change page by page, plus visual differences in layout and images. Download a comparison report. Free and private.
Compare PDFs – Free, Private & Online
Upload two versions of a document and instantly see what changed: added and removed lines for every page, plus a visual difference score that catches layout and image changes.
How to compare two PDFs online
- Click the upload area or drag and drop your file.
- Adjust the options to suit your document.
- Click the button to start — processing happens instantly in your browser.
- Download your new file.
Why use our Compare PDFs tool?
- Line-by-line text differences
- Visual page comparison
- Downloadable HTML report
- 100% private: your files never leave your device — everything runs locally in your browser.
- Free with no sign-up, no watermark and no daily limits.
- Works on Windows, Mac, Linux, Android and iPhone in any modern browser.
Common uses
- Checking contract revisions
- Reviewing edits to reports and theses
- Verifying that a printed proof matches the approved file
Frequently asked questions
Which file should be first?
Upload the original first and the new version second; additions are shown in green and removals in red.
Are my files uploaded to your server?
No. The PDF is processed by your own browser, so confidential documents stay on your device.
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