title: Navigate 3D PDF using iTextSharp
body: <p>I am having 3d PDF File. It contains lots of 3d drawings, but its embedded in a page. We are navigating to drawing in Navigation pane (Model Tree -> views ).</p>
  
  <p>I want to navigate this 3d pdf using C# with iTextSharp.</p>
  
  <p>Please let me know how to achieve it?</p>
  
  <p>For example :</p>
  
  <p><a href="http://examples.itextpdf.com/results/part4/chapter16/pdf3d.pdf" rel="nofollow">http://examples.itextpdf.com/results/part4/chapter16/pdf3d.pdf</a></p>
  
  <p>The above pdf has model tree. it has model,options and information panel. Now i want to control model selection .</p>