This class represents the requirement handler dictionary. This is definitively detailed in:.

The ISO PDF Specification, ISO 32000-1:2008 PDF 1.7; Table: 265, page 485.

The ISO PDF Specification, ISO 32000-2:2017 PDF 2.0; Table: 276, page 608.

System.Object
    WebSupergoo.ABCpdf14.Elements.Element
       WebSupergoo.ABCpdf14.Elements.RequirementHandlerElement

A requirement handler dictionary provides viewer-specific instructions for satisfying a document requirement. The S entry names the handler subtype. The Script entry holds a JavaScript string the viewer evaluates to check or satisfy the requirement.