PDF Java Tutorial

import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.*;
import com.lowagie.text.pdf.BaseFont;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
public class HelloWorldAbsolute {
  public static void main(String[] args) throws Exception {
    Document.compress = false;
    Document document = new Document(PageSize.A4);
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(
        "HelloWorldAbsolute.pdf"));
    document.open();
    PdfContentByte cb = writer.getDirectContent();
    BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252,
        BaseFont.NOT_EMBEDDED);
    cb.saveState(); 
    cb.beginText();
    cb.moveText(36, 806); 
    cb.moveText(0, -18); 
    cb.setFontAndSize(bf, 12); 
    cb.showText("Hello World"); 
    cb.endText(); 
    cb.restoreState(); 
    document.close();
  }
}