Java/PDF RTF/Bookmarks

Adding Bookmarks for PDF document

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Font;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfDestination;
import com.lowagie.text.pdf.PdfOutline;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
public class BookmarksPDF extends PdfPageEventHelper {
  public void onParagraph(PdfWriter writer, Document document, float position) {
    PdfContentByte cb = writer.getDirectContent();
    new PdfOutline(cb.getRootOutline(), new PdfDestination(PdfDestination.FITH, position), "paragraph at position: " +position);
  }
  public static void main(String[] args) {
    Document document = new Document(PageSize.A6);
    try {
      PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("BookmarksPDF.pdf"));
      writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
      document.open();
      writer.setPageEvent(new BookmarksPDF());
      document.add(new Paragraph("Text", new Font(Font.HELVETICA, 12)));
      document.newPage();
      document.add(new Paragraph("Text Text", new Font(Font.HELVETICA, 24)));
      document.newPage();
      document.add(new Paragraph("Text Text Text", new Font(Font.HELVETICA, 36)));
      document.newPage();
      document.add(new Paragraph("Text Text Text Text", new Font(Font.HELVETICA, 48)));
    } catch (Exception de) {
      de.printStackTrace();
    }
    document.close();
  }
}

Adding Bookmarks with outline for PDF document

import java.io.FileOutputStream;
import com.lowagie.text.Document;
import com.lowagie.text.Font;
import com.lowagie.text.PageSize;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfDestination;
import com.lowagie.text.pdf.PdfOutline;
import com.lowagie.text.pdf.PdfPageEventHelper;
import com.lowagie.text.pdf.PdfWriter;
public class Bookmarks1PDF{
  public static void main(String[] args) {
    Document document = new Document(PageSize.A6);
    try {
      PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("Bookmarks1PDF.pdf"));
      writer.setViewerPreferences(PdfWriter.PageModeUseOutlines);
      document.open();
            
      document.add(new Paragraph("Text.", new Font(Font.HELVETICA, 12)));
      PdfContentByte cb = writer.getDirectContent();
      PdfDestination destination = new PdfDestination(PdfDestination.FITH, 0);
      PdfOutline outline = new PdfOutline(cb.getRootOutline(), destination, "paragraph " + 1);
      
      document.add(new Paragraph("Text.", new Font(Font.HELVETICA, 12)));
      document.add(new Paragraph("Text.", new Font(Font.HELVETICA, 12)));
      
      cb = writer.getDirectContent();
      destination = new PdfDestination(PdfDestination.FITH, 1);
      outline = new PdfOutline(cb.getRootOutline(), destination, "paragraph " + 2);
      
      document.add(new Paragraph("Text.", new Font(Font.HELVETICA, 12)));
    } catch (Exception de) {
      de.printStackTrace();
    }
    document.close();
  }
}