THPDFRevisionModificationLevel Type

Grades the semantic severity of changes introduced after a signed revision

Declaration

THPDFRevisionModificationLevel= (rmlNone, rmlLongTermValidation,
  rmlFormFillAndSign, rmlAnnotations, rmlOther);

HPDFDoc

Value	Purpose
`rmlNone`	The revision introduces no detected semantic change
`rmlLongTermValidation`	The revision only adds validation evidence such as LTV data
`rmlFormFillAndSign`	The revision fills form fields or adds signatures, the change class most signature policies accept
`rmlAnnotations`	The revision creates, modifies, or deletes annotations
`rmlOther`	Any other change, the most restrictive grade the classifier can assign

The ordering is intentional: a larger ordinal is never less restrictive, so policy checks can compare with >= against an allowed ceiling
The classifier propagates the worst child level upwards, and rmlOther wins over every lower grade when mixed changes appear in one revision
The analysis is structural and policy-aware; cryptographic validity remains the responsibility of signature verification such as VerifyLoadedSignature