PDF

Compare PDFs

Compare two PDFs page by page and download a clear report with every visual change marked in red.

How to compare pdfs

  1. 1

    Add your file

    Drop your file into the box above or click to browse. It's processed privately in your browser — nothing is uploaded.

  2. 2

    Choose your options

    Adjust the available settings to get exactly the result you need.

  3. 3

    Download the result

    Run the tool and download your file instantly — no sign-up, no watermark.

About Compare PDFs

Compare PDFs makes revisions easy to review when you do not have the original source file. Add the older file first and the newer one second, then inspect the red change areas in the output.

The comparison is visual, so it also catches moved objects, image changes and formatting edits that a plain text diff would miss.

Frequently asked questions

What does the comparison check?+

It compares rendered pixels, so text, images, spacing and formatting changes are all detected.

What happens when page counts differ?+

Missing or added pages appear as fully changed pages in the report.

Are the PDFs uploaded?+

No. Both PDFs are rendered and compared locally.

More PDF tools