Java/PDF RTF/Servlet Rtf

Output RTF in a Servlet

import java.io.IOException;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.html.HtmlWriter;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.rtf.RtfWriter2;
public class HelloWorldServlet extends HttpServlet {
    public void doGet (HttpServletRequest request, HttpServletResponse response)
    throws IOException, ServletException {
        String presentationtype = request.getParameter("presentationtype");
        Document document = new Document();
        try {
            if ("rtf".equals(presentationtype)) {
                response.setContentType("text/rtf");
                RtfWriter2.getInstance(document, response.getOutputStream());
            }
            document.open();
            document.add(new Paragraph("Hello World"));
            document.add(new Paragraph(new Date().toString()));
        }
        catch(DocumentException de) {
            de.printStackTrace();
            System.err.println("document: " + de.getMessage());
        }
        document.close();
    }
}