A family of Microsoft word processing software products for creating web, email, and print documents.
What version of Word do you have? In Word in Microsoft 365 (desktop app), I don't get anything like the dialog you are showing. If I use Insert | Text | Signature Line, I get a dialog like this:
And when I insert the signature line (no matter what I type into the dialog or what options I select), this is what I get:
Clicking on it does nothing, and double-clicking gives an error message, there seems to be no option to type or insert an image. What am I doing wrong?