Free PDF tool

Compare PDF Files

Open two PDF files and review their text changes page by page.

🔒 Both PDFs stay in your browser. Selectable text only.
Choose the original PDF to see it here.
Choose the changed PDF to see it here.
01

Compare original and revised PDFs

Place the two versions next to each other and select Compare PDFs. The change list identifies added, removed and revised wording.

02

Navigate both documents

The paired viewers keep the PDF pages visible while you move through the difference list. You can zoom or change the page on either side.

Good to know

Frequently asked questions

Can I compare different page counts?

Yes. The tool compares corresponding page numbers and reports text on pages that exist on only one side as added or removed.

Does it require an account?

No. The comparison runs locally in your browser.

Related PDF comparison tools

View all free tools →

Public Library

Latest research guides

View all guides