How to use it
- Choose PDF A and PDF B.
- Run the page-by-page text and visual comparison.
- Review red visual diffs or download the JSON summary.
Helpful tips
- Red regions indicate pixel changes between matching pages.
- Different page dimensions are reported as a visual difference.
- This comparison assists review but is not legal or version-control proof.
Frequently asked questions
Are the PDFs uploaded?＋
No. Text extraction, rendering, and pixel comparison run in the current browser tab.
Can it compare scanned PDFs?＋
Yes for visual pixels. Without a text layer, text similarity does not perform OCR.