Privacy Policy

Last Updated: June 4, 2026

1. Our Privacy Commitment

At Sign PDF, we believe that your documents should remain private. Unlike traditional online PDF signers, we do not use servers to process your files. Everything happens locally on your device.

2. Data Collection

Documents: We do NOT collect, store, or transmit your PDF documents. When you upload a file, it is loaded into your browser's memory and never sent to our servers.

Signatures: Your signatures are created and stored locally in your browser. We do not have access to them.

3. Technical Security

Our website implements a strict Content Security Policy (CSP) that prevents any data from being sent to external domains. This is a mathematical guarantee that your data stays in your browser.

4. Cookies

We use local storage only to remember your theme preference (dark/light mode). We do not use tracking cookies or third-party analytics that compromise your anonymity.

5. Contact Us

If you have any questions about our privacy-first approach, please reach out via our contact page.