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Compare PDFs

Side-by-side visual and textual diff analysis highlighting additions, deletions, and edits.

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Step-by-Step Guide

How to use Compare PDFs

Upload the original PDF

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Select the first (original) document.

Upload the revised PDF

2/5

Select the second (revised) document.

Run comparison

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Click "Compare". Text and layout differences are identified.

Review changes

4/5

View a side-by-side diff report highlighting additions, deletions, and modifications.

Download the diff report

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Export the comparison as a marked-up PDF or text report.

Best Practices

Tip 1

For best results, compare PDFs of the same document (same page count and general layout).

Tip 2

The comparison is text-based — visual-only differences (e.g. font colour changes) may not be detected if text content is the same.

Common Questions

: Text-based comparison requires a text layer. Run OCR PDF on both documents first if they are scanned.
: The tool compares the text content of both documents. Added or removed pages are identified as additions/deletions in the diff.
: The current comparison is text-based. Image-only changes (e.g. a logo replacement) are not detected in this version.

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