Specifies properties of a signature.

Name Value Description
sigtypeMax 3 Specifies the maximum number of the signature types available in the current version of Office.
sigtypeNonVisible 1 A signature that is not visible in the content of the document.
sigtypeSignatureLine 2 A signature that is visible in the content of the document.
sigtypeUnknown 0 A signature not generated by Office.