PDFsharp & MigraDoc Foundation

Can anyone help. I can merge pdfs, and create bookmarks/outlines, child etc, on the new pdf, but I cannot find a way to read bookmarks from an existing pdf. Can pdfsharp do this. I saw the following code on the forum which I cannot get to work, but I am not a coding wiz:

PdfDictionary pol = (PdfDictionary)inputDocument2.Internals.Catalog.Elements.GetObject("/Outlines");
Console.WriteLine(pol.Elements.GetString("/Title"));