Sign PDF Online, Free

Add your signature to any PDF in under a minute. Draw with your mouse or touchscreen, type a styled signature, or upload a photo of your ink signature.

Sign a PDF now

Why Konomic

Three ways to sign

Draw with mouse, trackpad, or finger; type in a cursive font; or upload a PNG of your existing signature.

Legally binding

E-signatures are legally valid under ESIGN (US), eIDAS (EU), and most worldwide frameworks for everyday contracts.

No account required

Sign and download in one session — no email verification, no signup wall.

Works on mobile

Finger-sign from your phone or tablet. The signature canvas is touch-optimized.

How it works

  1. 1Upload the PDF you need to sign
  2. 2Draw, type, or upload your signature
  3. 3Drag the signature to the correct spot on the page
  4. 4Download the signed PDF

Frequently asked questions

Is an online PDF signature legal?

Yes. Drawn and typed e-signatures are legally valid under ESIGN (United States), eIDAS (European Union), and most international e-signature laws for everyday agreements.

Can I add initials on each page?

Yes. Create a separate initials mark, then drag it onto every page before downloading.

Can the other party sign too?

For multi-party signing use Konomic's sign-request workflow, which emails each signer and collects their signatures in order.

Will the signature look like my real one?

Drawing gives the best likeness. On a phone or tablet with a stylus, the result is nearly identical to a pen signature.

Is my document private?

Yes. Uploads are encrypted and auto-deleted within 1 hour. We never view or share signed documents.