This class represents the document catalog additional-actions dictionary. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 197, page 417.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 200, page 505.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.DocumentCatalogAdditionalActionsElement

A document catalog additional-actions dictionary associates actions with document-level lifecycle events: WC (will-close), WS (will-save), DS (did-save), WP (will-print), and DP (did-print). Each fires at a specific point in the document save or print cycle.