How to Add a Signature to a PDF Online
Signing a PDF used to mean printing it, signing, scanning and emailing it back. You can do it in a minute in your browser, without printing anything.
Three ways to make your signature
Draw it
With a mouse, a trackpad or a finger on a phone. The most natural-looking option.
Type it
Type your name and ColaPDF sets it in a handwriting font.
Use a picture of it
A photo or scan of your signature, as a PNG or JPG. A PNG with a transparent background blends in best.
How to sign a PDF
- Open Sign and choose the PDF you want to sign.
- Draw, type or pick your signature.
- Drag it into place and pull a corner to resize. For initials, tick Same spot on every page.
- Click Sign PDF and download the signed file.
Is it legally binding?
It depends on where you are and what you sign. A signature image on a document is widely accepted, especially for internal approvals and agreements where both sides accept electronic signing. For regulated contracts (financial, legal, medical), use a certified e-signature service that adds identity checks and an audit trail.
Your signature and the PDF are handled in your browser and never uploaded.
Do it now: Add Signature