Draw or type?
Drawing looks most like your handwritten signature. On a phone or tablet, use your finger or a stylus; on a computer, a mouse or trackpad works. If drawing is awkward, type your name and it is turned into a handwriting-style signature.
Blue ink helps a printed copy look clearly signed rather than photocopied, which some offices prefer. Black is the standard choice.
Placing your signature
Use Previous and Next to find the page with the signature line, then tap Add signature. Drag it onto the line and use the size slider so it fits. You can add it to as many pages as you need, for example to initial every page of a contract, and remove any copy you placed by mistake.
Is an electronic signature legal?
In many countries, including the US (ESIGN Act), the EU (eIDAS) and the UK, a simple electronic signature like this is legally valid for most everyday agreements. Some documents, such as wills or property deeds, may require a witnessed or certified digital signature instead. If you are unsure, check with the person or organisation asking you to sign.
This tool adds an image of your signature to the PDF. It does not add a cryptographic certificate.