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How to Sign a PDF Online for Free (No Printing, No App)

By the FreePDF team ·

Printing a PDF, signing it with a pen, and scanning it back in is a lot of steps for one signature. If you just need your name on a form or a contract, you can place it directly on the page from a browser and skip the printer entirely.

Signing a PDF

  1. Open the Sign PDF tool and upload your document.
  2. Draw your signature with a mouse or finger, or upload an image of one you already have.
  3. Drag it into place on the page, resize it to fit, and download the signed file.

Drawing vs uploading

  • Drawing works fine on a touchscreen or trackpad and is quickest for a one-off signature.
  • Uploading a PNG of your actual signature (photographed off paper, or exported from another app) gives a more consistent result if you sign documents often.

What this signature is — and isn't

This places a visible image of your signature onto the page, which covers most everyday paperwork: forms, letters, internal sign-offs, simple agreements. It does not add a certificate-based digital signature with cryptographic identity verification, so it isn't a substitute for that where a document specifically requires one — check with the other party if you're not sure which you need.

After signing

If the signed document also needs to stay private in transit, lock it with a password before you send it.

Common questions

Is this legally binding?

It's suitable for most everyday documents, but it's a visible signature image, not a certificate-based digital signature. For documents with strict legal signing requirements, check whether that specific format is required.

Can I reuse the same signature next time?

Save the image you upload (or a screenshot of your drawn one) so you can re-upload it instantly next time, rather than redrawing it from scratch.

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