Compare Two PDFs
Upload an old and a new version of a PDF and see exactly what changed: text changes are highlighted, and Page view marks differences in red. Your files stay on your device.
How to use Compare PDFs
- 1Upload the old PDF and the new PDF.
- 2Read the changed lines, with changed words highlighted.
- 3Open Page view to see differences in red on each page.
Why use FileDagadu
- Runs entirely in your browser — nothing is uploaded to a server
- No account, signup, or watermark required
- Works on desktop, tablet and mobile
- Free with no daily usage limit
Frequently asked questions
What does it compare?
It compares the text line by line and shows what was added, removed or changed, with the changed words highlighted. The Page view also shows where the pages look different.
Can I save the result?
Yes. Download the list of changes as a text file, or the page view as a picture.
Does it work on scanned PDFs?
The text comparison needs real text. For scans, use the Page view, which compares how the pages look.
Are my files uploaded to a server?
No. Both PDFs are compared in your browser, so they stay on your device.
Guides & tips
Related tools
JPG to PDF
Convert JPG images into a single PDF.
PNG to PDF
Convert PNG images into a single PDF.
Images to PDF
Combine multiple images into one PDF file.
PDF to JPG
Turn every PDF page into a JPG image.
PDF to PNG
Turn every PDF page into a PNG image.
Compress PDF
Reduce PDF file size — keep text, or reach an exact size.