test.cs

using TXTextControl.ServerTextControl serverTextControl = new TXTextControl.ServerTextControl();

serverTextControl.Create();
serverTextControl.Text = "I am a PDF document!\fPage2\fPage3\fPage4\fPage5";

var jsAlert = "app.alert('This is a JavaScript alert!');";

TXTextControl.SaveSettings saveSettings = new TXTextControl.SaveSettings()
{
	DocumentLevelJavaScriptActions = new string[] { jsAlert }
};

serverTextControl.Save("output.pdf", TXTextControl.StreamType.AdobePDF, saveSettings);