ABCpdf .NET PDF Component Documentation - Doc Root Property. The root catalog object.

The following code snippet illustrates how one might find some information about a PDF document.

using var doc = new Doc();
doc.Read(Server.MapPath("../mypics/mydoc.pdf"));
string vers = doc.GetInfo(doc.Root, "Version");
string names = doc.GetInfo(doc.Root, "/Names");
string pages = doc.GetInfo(doc.Root, "pages");
string outlines = doc.GetInfo(doc.Root, "outlines");
Response.Write($"Version {vers}&lt;br&gt;");
Response.Write($"Names {names}&lt;br&gt;");
Response.Write($"Pages ID {pages}&lt;br&gt;");
Response.Write($"Outlines ID {outlines}&lt;br&gt;");

Using doc As New Doc()
  doc.Read(Server.MapPath("../mypics/mydoc.pdf"))
  Dim theVers As String, theNames As String, thePages As String, theOutlines As String
  theVers = doc.GetInfo(doc.Root, "Version")
  theNames = doc.GetInfo(doc.Root, "/Names")
  thePages = doc.GetInfo(doc.Root, "pages")
  theOutlines = doc.GetInfo(doc.Root, "outlines")
  Response.Write($"Version {theVers}&lt;br&gt;")
  Response.Write($"Names {theNames}&lt;br&gt;")
  Response.Write($"Pages ID {thePages}&lt;br&gt;")
  Response.Write($"Outlines ID {theOutlines}&lt;br&gt;")
End Using