Sign PDF — Free Online Tool

✍️

Drop PDF here or click to upload

Add a signature to any PDF · Drawn entirely in your browser

How to Use Sign PDF

Upload your PDF
Drop or select the PDF you want to sign.
Draw your signature
Use your mouse, trackpad, or touchscreen to draw on the canvas.
Choose placement
Pick which page and corner the signature goes on.
Sign & Download
Your signed PDF downloads instantly. Original file is untouched.

Frequently Asked Questions

Is this a legally binding e-signature?

This adds a visual signature image to your PDF. For legally certified signatures (eIDAS, ESIGN Act), use a service like DocuSign which provides cryptographic certificates.

Where is my signature stored?

Nowhere. Both the PDF and your drawn signature stay in your browser session and are discarded when you close the page.

Can I sign on mobile?

Yes, the signature canvas works with touchscreens. Draw with your finger or stylus.