PDF Sign

PDF

Add electronic signatures to PDF documents. Draw signature with mouse/touch or upload a signature image. Customize position and size. 100% client-side.

Ready · 100% client-side

About PDF Sign

Add electronic signatures to PDF documents directly in your browser without printing, scanning, or any third-party service. Draw your signature using mouse or touch input with customizable stroke color and width, or upload a pre-made signature image with transparent background (PNG with transparency recommended). Position the signature anywhere on any page with drag-to-move, and resize it to fit the signature line. The signature is embedded as a vector overlay on the PDF canvas, preserving document quality. Ideal for signing contracts, consent forms, purchase orders, and non-disclosure agreements. 100% client-side, no upload to any server.

How to Use

  1. Open the PDF Sign tool page
  2. Enter or paste your data into the input area
  3. View the real-time results and use the copy button to get the output

Use Cases

  • Contract signing — Add handwritten electronic signatures to PDF contracts for quick signing.
  • Document approval — Sign approval documents to confirm content and streamline approval workflows.
  • Personal documents — Add signatures to resumes, applications, and other personal PDF documents.

FAQ

Is the electronic signature legally binding?

This tool generates image-based signatures which may not have the same legal weight as digital certificate signatures. For formal legal documents, use professional e-signature services.

Can I draw Chinese signatures?

Yes. Draw directly on the canvas with mouse or touchscreen for any language signature.

What image format is supported?

PNG format with transparent background is recommended for the best results.

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