Compare two PDFs
See exactly what changed between two versions of a PDF, page by page.
Mae's Compare PDF tool renders both files page-by-page, highlights every pixel that differs in red on a downloadable diff image, and checks whether the underlying text on each page is identical. Use it to review contract redlines, catch layout regressions, or confirm a reprint matches the original.
Frequently asked questions
What do I get back?
A red-highlighted diff image for each page plus a text summary of the percentage of pixels changed and whether the text content matches.
Does it work if the two PDFs have a different number of pages?
Yes — pages that only exist in one file are called out explicitly in the summary.