This class represents the optional content usage export dictionary. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 102, page 232.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 100, page 284.

The export usage dictionary specifies whether an optional content group should be treated as visible when the document's content is exported to another format or application.

The ExportState entry holds a name indicating the desired visibility: ON means the group should appear in the exported content, and OFF means it should be suppressed.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.OptionalContentUsageExportElement