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Sign a PDF in your browser — free and private

Upload a PDF, draw or upload your signature, drag it into place on any page, and download the signed file. Nothing is ever uploaded to a server.

  • 100% free
  • No sign-up
  • Private — runs in your browser
  • Works on mobile

Add your signature and download the signed PDF

Drop a PDF, draw or upload a signature image, then drag and resize it right on the page. Place it on as many pages as you like before downloading.

FAQ

Is this PDF signing tool free and does it upload my document?

Yes — free, no sign-up, and your PDF never leaves your device. The PDF is rendered, the signature is composited, and the signed file is built entirely in your browser using PDF.js and pdf-lib; nothing is sent to a server.

Can I draw my signature, or do I need an image?

Both work. Draw directly on the screen with your mouse, finger, or stylus, or upload an existing signature image (PNG or JPG). Drawn signatures are automatically trimmed to a transparent PNG so they blend cleanly into the page.

Can I sign more than one page?

Yes. Once your signature is ready, navigate to any page and use "Add signature to this page" to drop another copy — you can place as many instances as you need, each independently positioned and resized.

Is this a legally binding electronic signature?

This tool visually places your signature image onto the PDF — it doesn't implement a certified digital-signature standard (like PAdES) with identity verification or cryptographic signing. For everyday documents that's usually all you need, but check your jurisdiction's requirements for anything that needs to be legally binding.

Guides

short reads about signing documents online