AttachmentInfoKey Property
            Gets or sets the internal key (unique fileSpec key in PDF) of the attachment.
            This can have PDF internal folder id e.g "<2>File.docx" or not e.g. "File.docx".
            Note that this will be generated automatically when writing the PDF.
            
Namespace: GleamTech.DocumentUltimateAssembly: GleamTech.DocumentUltimate (in GleamTech.DocumentUltimate.dll) Version: 7.8.0
public string Key { get; set; }
Public Property Key As String
	Get
	Set
Property Value
String