What people see if they try to sign without a digital certificate.
If a signer doesn't have a digital certificate, they may get this message when they try to sign the file. The message explains that they need a digital ID. A digital ID is just another term for a digital certificate.
The best option for them is to click the first choice so that they can get a digital ID from a Microsoft partner. When they click OK, a Web page will open and they can choose from a handful of providers.
