My hand-signed signature won't auto-populate to multiple devices. Is that possible?

I already have a drawn (real) signature from "PC One" (Windows 8.1 & Acrobat Reader DC), and have created an Acrobat Cloud account, hoping that all other PC's that I open the Cloud into, will "save" that signature. It doesn't.

My specific example, is "PC Two", where I'm using Windows 7 & Acrobat Reader XI. Here, when I open Acrobat XI (and login), the "Sign" option is at the Top along with "Tools, Comment, and Extended".

When I click Sign, it only gives me options to create a BRAND NEW signature. There are no options to Save anything, because it doesn't have a signature to save.

To recap: I already have a signature that I want to keep using; how do I get the Cloud to "pick it up"?

Ideas?