In a stand alone environment the acrodata files are stored in c:\users\%Username%\Appdata\......... But when using the standard procedure of redirecting user data folders in a server environment, the edited appereance of a signature is lost after closing adobe acrobat.
Is there a way to prevent this from happening?
You can export the certificate and appearance from here: Go to Edit - Preferences - Signatures, then click the More... button in the Identities & Trusted Certificates box and from there you could export the digital IDs in your computer as files.
Let me know if this works.
This will only export the certificate. Signature appearances are (on Windows) in C:\Users\<userID>\AppData\Roaming\Adobe\Acrobat\<version>\Security\appearances.acrodata where <version> is 10.0, 11.0 or DC. When you use roaming profiles it is saved wherever Windows OS puts them.