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Adding bookmark or outline tree to PDF ------pdf书签

 
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package com.geek.tutorial.itext.bookmarks;

import com.lowagie.text.Document;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.Chunk;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfOutline;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfAction;
import java.io.FileOutputStream;

public class Outline {

public Outline() throws Exception{

Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document,
new FileOutputStream("outline.pdf"));
document.open();

// Code 1
document.add(new Chunk("Chapter 1")
.setLocalDestination("1"));
document.newPage();

document.add(new Chunk("Chapter 2")
.setLocalDestination("2"));
document.add(new Paragraph(new Chunk("Sub 2.1")
.setLocalDestination("2.1")));
document.add(new Paragraph(new Chunk("Sub 2.2")
.setLocalDestination("2.2")));
document.newPage();

document.add(new Chunk("Chapter 3")
.setLocalDestination("3"));

// Code 2
PdfContentByte cb = writer.getDirectContent();
PdfOutline root = cb.getRootOutline();

// Code 3
PdfOutline oline1 = new PdfOutline(root,
PdfAction.gotoLocalPage("1", false),"Chapter 1");

PdfOutline oline2 = new PdfOutline(root,
PdfAction.gotoLocalPage("2", false),"Chapter 2");
oline2.setOpen(false);
PdfOutline oline2_1 = new PdfOutline(oline2,
PdfAction.gotoLocalPage("2.1", false),"Sub 2.1");
PdfOutline oline2_2 = new PdfOutline(oline2,
PdfAction.gotoLocalPage("2.2", false),"Sub 2.2");

PdfOutline oline3 = new PdfOutline(root,
PdfAction.gotoLocalPage("3", false),"Chapter 3");

document.close();
}

public static void main(String[] args) {
try{
Outline outline = new Outline();
}catch(Exception e){
System.out.println(e);
}

}

}

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