Does it compare layout or images?

It compares the text, which is what matters for contracts.

Can I compare Word files?

Convert them to PDF first with Word to PDF.

Are my contracts uploaded?

No. The comparison happens in your browser.

How to compare two versions of a PDF contract

Why compare before signing?

A single changed word — a date, an amount, “may” instead of “must” — can change the meaning of a contract. Reading 20 pages twice is tiring and unreliable; an automatic comparison finds everything.

Compare two PDFs

Open Compare PDF.
Add the old version first, then the new version.
Read the differences: deleted words in red, added words in green, side by side.
Download the comparison report if you want to share it.

Compare PDFSee the differences between two versions of a document.

Open the free tool

What to check first

Amounts, prices and payment terms
Dates, durations and notice periods
Obligations (“must”, “shall”) and exclusions (“except”, “unless”)
Names of the parties and signatories

Scanned contracts

The comparison is based on text. If one version is a scan, run OCR PDF on it first.

Then sign safely

Once you agree with the final version, sign it with Sign PDF. Your documents stay on your device from start to finish.