'Declaration
<DispIdAttribute(199)> Function PdfGetMetadata() As String
[DispId(199)]
string PdfGetMetadata()
function PdfGetMetadata(): String;
DispIdAttribute(199)
function PdfGetMetadata() : String;
[DispId(199)]
string* PdfGetMetadata();
[DispId(199)] String^ PdfGetMetadata();