A hide action: hides or shows annotations by setting or clearing their Hidden flags.
public sealed class PdfHideAction : PdfAction
ISO 32000-2 §12.6.4.11, Table 214 (PDF 1.2).
kind:method, kind:property, kind:ctor. Press Esc to clear.HideGets whether to hide (true, the default) or show (false) the annotations (H).KindGets the type of action ActionType names in Table 201, or Unknown.TargetsGets the annotations to hide or show (T, required): annotation dictionaries, and fully qualified field names whose widget annotations are meant. A single target reads as a list of one; an element of another type is skipped with a diagnostic.