Java/PDF RTF/itext version

Getting itext version

import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfWriter;
public class iTextVersion {
    public static void main(String[] args) {
        Document document = new Document();
        try {
            PdfWriter.getInstance(document, new FileOutputStream("Version.pdf"));
            document.open();
            document.add(new Paragraph("This page was made using " + Document.getVersion()));
        }
        catch(Exception ioe) {
            System.err.println(ioe.getMessage());
        }
        document.close();
    }
}