Signature verification is invalid in Adobe

Step-by-step guide

1. Download the following .zip file: CitizenCA.zip
2. Extract the file.
3. Execute the file by double clicking on Install-EID-CA.cmd
   
   
4. Once done, the window will disappear.
5. Restart Adobe.

Verify if the command execution was successful

1. Open Edge browser and select the three dots in the upper right corner:
2. Select Settings
3. In settings, type "certificates" in the search.
4. Click on Manage Certificates
5. Go to the tab Intermediate Certification Authorities
6. Verify that several Citizen CA's are present in the list.
7. (alternative you can use MMC)