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PDFsA certificate thumbprint is a hexadecimal string that identifies a certificate. A thumbprint is calculated from the content of the certificate using a thumbprint algorithm.
Steps
Perform the following on the GUI:
Double-click the certificate.
In the Certificate dialog box, click the Details tab.
Scroll through the list of fields and click Thumbprint.
Copy the hexadecimal characters from the box.
Remove the spaces between the hexadecimal numbers.
For example, if the thumbprint is: "a9 09 50 2d d8 2a e4 14 33 e6 f8 38 86 b0 0d 42 77 a3 2a 7b", after removing the spaces, it will be: "a909502dd82ae41433e6f83886b00d4277a32a7b".
Perform the following from PowerShell:
Run the following command to list the thumbprint of the installed certificate and identify the recently installed certificate by the subject name.
Get-ChildItem -Path Cert:\LocalMachine\My
Copy the thumbprint.
