Sign & Stamp

Sign with a drawn signature or stamp with an image. Apply to all or specific pages. ClaudPDF processes your document entirely in your browser, so your files are never uploaded anywhere.

Use the Sign & Stamp tool for free with no sign-up, no watermarks and no waiting queues. Drop your PDF in, pick your options, and download the result in seconds.

Because everything runs locally with WebAssembly, Sign & Stamp works on Windows, macOS, Linux, Android and iOS — and your document never leaves your device.

How to use Sign & Stamp

1. Open the Sign & Stamp tool and drop your file into the upload area.
2. Adjust the available options to match what you need.
3. Click the process button — the work happens instantly in your browser.
4. Download your finished file.

Frequently asked questions

Is Sign & Stamp free?

Yes. Sign & Stamp is completely free with no sign-up, no watermarks and no file limits.

Are my files safe when I use Sign & Stamp?

Yes. Sign & Stamp runs entirely in your browser, so your files are never uploaded to a server.

Do I need to install anything to use Sign & Stamp?

No. Sign & Stamp works directly in your web browser on any device — desktop or mobile.

Related tools: Unlock PDF · Sanitize PDF · Redact PDF · Compare PDF