import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfPCell;
import com.lowagie.text.pdf.PdfPTable;
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();
PdfPTable table = new PdfPTable(4);
PdfPTable nested1 = new PdfPTable(2);
nested1.addCell("1.1");
nested1.addCell("1.2");
PdfPTable nested2 = new PdfPTable(1);
nested2.addCell("20.1");
nested2.addCell("20.2");
for (int k = 0; k < 24; ++k) {
if (k == 1) {
table.addCell(nested1);
} else if (k == 20) {
table.addCell(new PdfPCell(nested2));
} else {
table.addCell("cell " + k);
}
}
document.add(table);
document.close();
}
}