2.1.7.19 Viewer Content Stream (\009DRMViewerContent)

The Viewer Content Stream is specified in [MS-OFFCRYPTO] section 2.2.11.

The name of this stream MUST be "\009DRMViewerContent", where \009 is the character with the value 0x09, not the string literal "\009". A file MUST contain at most one Viewer Content Stream.