Compare two versions in a PDF on Firefox

See exactly what changed between two versions of a PDF. On Firefox it runs in the browser, so there is nothing to install.

How to do it

1.Go to mythospdf.com in Firefox and drop the PDF onto the page.
2.Add the old and the new version.
3.Review the highlighted differences.

Tips for Firefox

• Works with strict tracking protection on.

What happens to the rest of the page

• The differences between the two files are highlighted.
• Useful before sending a revised draft.

Questions people ask

+Do I need both files?

Yes. Add the old and the new version to compare them.

Other edits on Firefox

Compare two versions on

Ready to fix your PDF?

Free, in your browser, and it takes about a minute. No account needed.