How to use it
- Add the original PDF
- Add the new version
- Review the highlighted changes
Questions people ask
Does it compare pictures?
It compares the text. Changes to images or layout are not shown.
Is Compare PDF really free?
Yes. Every PDFtoOne tool is free with no login, no daily limit and no watermark. The site is supported by ads.
Is there a file size limit?
We set no limit. Files are processed by your own device, so the only limit is its memory. Computers handle very large files; phones handle most everyday files easily.
Does it work offline?
Yes. Once you have used a tool, it keeps working without internet. You can also install PDFtoOne as an app.