Hello Calebr,
I am sorry for the trouble and for the delayed response, as you mentioned that the two digital ids available are predefined by the Macbook.
You can remove the Digital IDs from Acrobat>Preferences>Signatures.
- In Identities & Trusted Certificates, and click More.
- Select Digital IDs on the left, and then select the digital ID to remove.
- Click Remove ID.
- Enter the password, and then click OK.
Note: If you have forgotten the password, you cannot delete the ID from here. When you click Remove ID, the Acrobat Security dialog box shows the complete location of the digital ID file. Go to the location, delete the file, and then relaunch Acrobat. The ID is removed from the list.
If you wish to create a new Digital ID, You can add a new Digital ID from Acrobat>Preferences>Signatures.
- In Identities & Trusted Certificates, and click More.
- Select Digital IDs on the left, and then Click the Add ID button.
- Select the option A New Digital ID I Want To Create Now, and click Next.
- Specify where to store the digital ID, and click Next.
- Follow the onscreen instruction to create a Digital ID.
You may also take help from the Adobe article Digital IDs in Acrobat
Let us know if you experience any issue.
Thanks,
Anand Sri.