How do I compare two PDFs?

Upload both versions and click Compare. Each page pair is analysed and every visual difference is highlighted in the result.

What kinds of changes are detected?

Any visible change: edited text, moved paragraphs, swapped images, layout shifts — if pixels differ, it's flagged.

Pages are compared in order, and extra pages in either document are marked as added or removed.

A report PDF showing each page with the changed regions highlighted, so you can review differences page by page.

No. Both files are compared in memory and purged as soon as the report is delivered.

Spot every difference between two PDF versions.

Drop your PDF here or click to browse

Up to 50 MB · processed in memory · deleted immediately

How do I compare two PDFs?: Upload both versions and click Compare. Each page pair is analysed and every visual difference is highlighted in the result.
What kinds of changes are detected?: Any visible change: edited text, moved paragraphs, swapped images, layout shifts — if pixels differ, it's flagged.
What if the documents have different page counts?: Pages are compared in order, and extra pages in either document are marked as added or removed.
What does the output look like?: A report PDF showing each page with the changed regions highlighted, so you can review differences page by page.
Are my documents stored after comparison?: No. Both files are compared in memory and purged as soon as the report is delivered.