How to directly access text in AxAcroPDFLib?

Question

I have a COM component of class AxAcroPDF which is part of Adobe acrobat 7.0 browser control type library 1.0.

I would like to search text inside the PDF like it would be a String is it possible?

I went through: http://partners.adobe.com/public/developer/en/acrobat/sdk/pdf/iac/IACReference.pdf

 public Form1() {
            InitializeComponent();
            //axAcroPDF1.LoadFile("C:/cw3_31paz.pdf");
            axAcroPDF1.src = "C:/cw3_31paz.pdf";
            axAcroPDF1.setShowToolbar(false);
            axAcroPDF1.setView("FitH");
            axAcroPDF1.setLayoutMode("SinglePage");           
        }

but I don't know how to get access to the text inside directly so I could process it.