Signatures panel
The Signatures panel is available from the Panel bar when you select the following tool:
If you do not see this tool,
right-click in an empty area of the Panel bar and select it.
The Signatures panel provides information on all signatures attached to the current document. Click the Options button at the top to select from a list of Signature commands.
For more information see About Digital Signatures and Verifying Digital Signatures.
Handwritten signatures do not appear in this panel because they have no linked security. They are treated as stamps and appear in the Comments panel.