I use this code:
Page page = (Page)doc.Pages[1];
var text = new TextFragment("index");
text.Position = new Position(200, 300);
Aspose.Pdf.WebHyperlink link = new
WebHyperlink("www.google.com");
text.Hyperlink = link;
page.Paragraphs.Add(text);
but new Position(200, 300); values not responding.