Compare Two PDFs Online — See Text Changes Free

How to compare two PDFs

1. Drop the original PDF on the left and the revised one on the right.
2. Click Compare — Kameleo reconstructs the text of both and runs a line-by-line diff.
3. Review additions in green and removals in red, with a changes-only view.

Frequently asked questions

Does it compare formatting or images?

It compares text content — ideal for contracts and drafts. Visual/layout changes aren't flagged.

Can it handle scanned documents?

Run OCR on both files first so they have a text layer.

Is there a size limit?

Very long documents are compared on the first 2,500 lines per side and clearly labelled when truncated.