Opening the link
The signer opens the link from the email. If you set an access code, they type it first. They read your message, agree to sign electronically, and see the document exactly as you sent it.
Adopting a signature
They type their name and pick a style, draw with a finger, or upload an image. Initials are suggested from the name and can be changed. The signature is applied to every field assigned to them with one tap each.
Start, next, finish
A Start button takes them to the first required field and Next walks them through the rest, text boxes included. Finish stays off until everything required is done, so nothing comes back half signed.
It works on a phone, with the page fitted to the screen.