HelloWorldAddMetadata.java Source code

Introduction

Here is the source code for HelloWorldAddMetadata.java

Source

import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.util.HashMap;

import com.lowagie.text.Document;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfStamper;
import com.lowagie.text.pdf.PdfWriter;
import com.lowagie.text.xml.xmp.XmpWriter;

public class HelloWorldAddMetadata {

    public static void main(String[] args) throws Exception {
        Document document = new Document();
        PdfWriter.getInstance(document, new FileOutputStream("HelloWorld.pdf"));
        document.open();
        document.add(new Paragraph("Hello World"));
        document.close();

        PdfReader reader = new PdfReader("HelloWorld.pdf");
        System.out.println("Tampered? " + reader.isTampered());
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("HelloWorldStampedMetadata.pdf"));
        System.out.println("Tampered? " + reader.isTampered());
        HashMap<String, String> info = reader.getInfo();
        info.put("Subject", "Hello World");
        info.put("Author", "your name");
        info.put("Keywords", "iText pdf");
        info.put("Title", "Hello World stamped");
        info.put("Creator", "your name");
        stamper.setMoreInfo(info);
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        XmpWriter xmp = new XmpWriter(baos, info);
        xmp.close();
        stamper.setXmpMetadata(baos.toByteArray());
        stamper.close();
    }

}