import java.awt.Color;
import java.io.FileOutputStream;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
public class MainClass {
public static void main(String[] args) throws Exception {
Document document = new Document();
PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
document.open();
Chunk line = new Chunk("this is a test");
line.setUnderline(0.5f, 3f);
Paragraph p = new Paragraph ();
p.add(line);
document.add(p);
document.add(Chunk.NEWLINE);
document.close();
}
}