THPDFHeadlessSecurityFailure

This enum in HPDFHeadlessSecurity identifies the reason exposed by EHPDFHeadlessSecurityError

• hsUnsupportedHandler: unsupported security revision or crypt-filter policy
• hsMalformedDictionary: missing, indirect, mistyped, or invalid-length security entries
• hsInvalidPassword: neither user nor owner authentication succeeded
• hsInvalidPermissions: encrypted Perms disagrees with the permission mask or metadata policy
• hsInvalidPayload: incomplete AESV3 IV, invalid block length, or invalid padding
• hsPermissionDenied: the authenticated user lacks the requested operation permission