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Defines the options used to initialize a layer state when the document is first opened by a PDF processor.
public class OptionalContentUsage.ViewDef : PdfDictWrapper, IPdfDictInitializes a new instance of the OptionalContentUsage.ViewDef class.
public ViewDef()Gets or sets a value indicates the state of the group when the document is first opened by a PDF processor.
public PdfEnum<LayerContentState>? ViewState { get; set; }