Execute Acrobat JavaScript Code when a Button is Clicked

protected void convertToPdf()
{
    // Get the server IP and port
    String serverIP = textBoxServerIP.Text;
    uint serverPort = uint.Parse(textBoxServerPort.Text);

    // Create a HTML to PDF converter object
    HtmlToPdfConverter htmlToPdfConverter = null;
    if (radioButtonUseTcpService.Checked)
        htmlToPdfConverter = new HtmlToPdfConverter(serverIP, serverPort);
    else
        htmlToPdfConverter = new HtmlToPdfConverter(true, textBoxWebServiceUrl.Text);

    // Set optional service password
    if (textBoxServicePassword.Text.Length > 0)
        htmlToPdfConverter.ServicePassword = textBoxServicePassword.Text;

    // Set license key received after purchase to use the converter in licensed mode
    // Leave it not set to use the converter in demo mode
    htmlToPdfConverter.LicenseKey = "4W9+bn19bn5ue2B+bn1/YH98YHd3d3c=";

    // Set an adddional delay in seconds to wait for JavaScript or AJAX calls after page load completed
    // Set this property to 0 if you don't need to wait for such asynchcronous operations to finish
    htmlToPdfConverter.ConversionDelay = 2;

    string htmlWithButton = htmlStringTextBox.Text;
    string baseUrl = baseUrlTextBox.Text;

    // Convert a HTML string with a button to a PDF document object
    Document pdfDocument = htmlToPdfConverter.ConvertHtmlToPdfDocumentObject(htmlWithButton, baseUrl);

    // Get the button location in PDF
    HtmlElementMapping buttonMapping = htmlToPdfConverter.HtmlElementsMappingOptions.HtmlElementsMappingResult.GetElementByMappingId("javascript_button");
    if (buttonMapping != null)
    {
        PdfPage buttonPdfPage = pdfDocument.GetPage(buttonMapping.PdfRectangles[0].PageIndex);
        RectangleFloat buttonRectangle = buttonMapping.PdfRectangles[0].Rectangle;

        // The font used for buttons text in PDF document
        PdfFont buttonTextFont = new PdfFont("Times New Roman", 8, true);

        // Create a PDF form button
        PdfFormButton pdfButton = new PdfFormButton(buttonRectangle, "Execute Acrobat JavaScript", buttonTextFont);
        pdfButton.Style.BackColor = RgbColor.Beige;
        pdfDocument.Form.AddButton(buttonPdfPage, pdfButton);

        // Set JavaScript action to be executed when the button is clicked
        string javaScript = null;
        if (alertMessageRadioButton.Checked)
        {
            // JavaScript to display an alert mesage 
            javaScript = String.Format("app.alert(\"{0}\")", alertMessageTextBox.Text);
        }
        else if (printDialogRadioButton.Checked)
        {
            // JavaScript to open the print dialog
            javaScript = "print()";
        }
        else if (zoomLevelRadioButton.Checked)
        {
            // JavaScript to set an initial zoom level 
            javaScript = String.Format("zoom={0}", int.Parse(zoomLevelTextBox.Text));
        }

        // Set the JavaScript action
        pdfButton.Action = new PdfActionJavaScript(javaScript);
    }

    // Save the PDF document in a memory buffer
    byte[] outPdfBuffer = pdfDocument.Save();
}