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Sign PDF

Draw signature and embed into PDF

Privacy: this tool runs entirely in your browser — files are never uploaded, and data is gone when you close the page.

How to use

  1. Draw your signature on the canvas.
  2. Choose a PDF and set page/position.
  3. Click sign and download.

FAQ

Is the signature legally binding?

This is a visual e-signature. Legal validity depends on local e-signature laws.

Can I resize the signature?

Currently fixed at 50% scale. Custom sizing in development.

About this Sign PDF

This tool uses canvas for hand-drawn signatures, then embeds the signature as a PNG into the PDF via pdf-lib. The signature is overlaid on the PDF content. Note: this is a visual signature, not a digital certificate.