100% Private Local Tool

Sign PDF Documents Online Free

Draw, type, or upload electronic signatures and place them on contracts, leases, and agreements.

Quick Summary

To sign a PDF: 1. Upload your PDF document. 2. Draw or create your signature. 3. Place on page and download your signed document.

Key Capabilities & Privacy Features

  • Draw signature on touchscreen or mouse canvas
  • Type custom signature with professional cursive fonts
  • Upload high-resolution transparent signature stamp
  • 100% In-browser execution with zero signature data storage

How to Use Sign PDF Documents Online Free

  1. Upload Contract: Open the agreement or lease needing signature.
  2. Create Signature: Draw with your finger/stylus or type your name.
  3. Place & Download: Position signature box and download signed PDF.

Legally Compliant Electronic Signatures

Electronic signatures are legally recognized under the ESIGN Act and eIDAS regulations for most commercial agreements and contracts.

Client-Side Performance & Privacy

Sign PDF Documents Online Free executes 100% inside your local browser memory sandbox using WebAssembly. Your files are never transmitted across the network or stored on external servers. For multi-gigabyte or heavily nested files, splitting into smaller sections ensures instant responsiveness on low-memory mobile devices.

Frequently Asked Questions

Is my signature saved on a server?

Never. Your signature is drawn in client-side memory and embedded directly into your PDF.

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