Adobe fill and Sign: how to change add a signature By mike on 3rd July 2021 01:06:31 PM
I have this problem as well, clicking on the "-" sign next to my already installed signature does nothing.
I cannot find a way in Adobe Acrobat DC to get rid of it or replace it.
I was able to use the method described here by Peeters31644761 (Thank you!) to delete the signature files in AppData...
%appdata%\Adobe\Acrobat\DC\Security\acrobat_fss_signature_initials %appdata%\Adobe\Acrobat\DC\Security\acrobat_fss_signature_initialsi %appdata%\Adobe\Acrobat\DC\Security\acrobat_fss_signature_initialsk
And thank you to JimsonC for providing the full path to these files... Located at