How to Sign a PDF Electronically — Free and Private

Printing a document just to sign it and scan it back is the most dated step in any modern workflow. You can add a real, good-looking signature to a PDF in under a minute — and keep the document entirely on your own device.

Sign in three steps

1. Open Sign PDF and add your document.
2. Draw your signature with a mouse or finger, or type it and pick an ink colour.
3. Drag it onto the right page, size it, and download.

No account, no upload, no watermark.

Is an electronic signature legit?

For the vast majority of everyday agreements — internal approvals, NDAs, consent forms — a clear visible signature is widely accepted. For regulated or high-value contracts that require a qualified digital signature, use a certified provider that adds a cryptographic certificate.

Tip: Save a clean version of your signature by signing once on a blank page — then you'll know exactly how it looks before applying it to the real document.

Sign it, send it, move on. Try Sign PDF.