Skip to content
PurePDF

Sign PDF

Draw a signature and place it on a document.

  • 100% Private
  • No Limits
  • Works Offline
Choose PDF file

or drag and drop here

Draw your signature with your mouse or finger and place it on a PDF — no printing, scanning, or uploading required. Everything happens in your browser.

How to use this tool

  1. 1

    Upload your PDF

    Click the upload area or drag in the document you need to sign.

  2. 2

    Draw your signature

    Sign in the box using your mouse, trackpad, or touchscreen.

  3. 3

    Place and resize it

    Drag your signature anywhere on the page and resize it with the corner handles — navigate to a different page if you need to sign more than one.

  4. 4

    Sign and download

    Your signed PDF downloads immediately — nothing is uploaded first.

Why use this tool

Nothing leaves your device

The signature is embedded locally via WebAssembly — the document is never uploaded.

No printing or scanning

Sign directly on-screen instead of printing, signing by hand, and re-scanning.

Redo it as many times as you like

Clear and redraw your signature until it looks right, at no cost.

Common use cases

Sign a contract

Add your signature to an agreement without printing it out.

Approve a form

Quickly sign off on a form that just needs your signature, not full editing.

Sign from anywhere

Sign a document on your phone or tablet while away from a printer.

Pro tips

  • Draw larger and slower for a cleaner signature — small fast strokes can look jagged.
  • You can place more than one signature — draw again and drag each one to its own spot, even across different pages.
  • Use Request Signature instead if you need to collect signatures from other people with a tracked audit trail.

Related tools