Java Programming

hi all,
I am trying to convert a PDF into other formats like doc and text. I am using the code:

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.StringReader;
import java.util.Iterator;
import java.util.Map;

import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.Paragraph;
import com.lowagie.text.pdf.PRIndirectReference;
import com.lowagie.text.pdf.PRStream;
import com.lowagie.text.pdf.PRTokeniser;
import com.lowagie.text.pdf.PdfDictionary;
import com.lowagie.text.pdf.PdfName;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.rtf.RtfWriter2;

/**
* The HelloWorld class demonstrates the basic steps of creating an
* RTF document with iText.
*
* @version $Revision: 2428 $
* @author Mark Hall (mhall@edu.uni-klu.ac.at)
*/
public class PDFToRTF {
/**
* Hello World! example
*
* @param args Unused
* @throws IOException
*/
public static void main(String[] args) throws IOException {
System.out.println("Hello World! example for the RTF format");
try {
// Step 1: Create a new Document
Document document = new Document();

// Step 2: Create a new instance of the RtfWriter2 with the document
// and target output stream.


// Step 3: Open the document.
document.open();
//my escapade
PdfReader reader = new PdfReader("D:\\Workspace\\Test\\HelloWorld.pdf");
Map info = reader.getInfo();
System.out.println("Info ----------"+reader.getPageContent(1));
String key;
String value;
for (Iterator i = info.keySet().iterator(); i.hasNext();) {
key = (String) i.next();
value = (String) info.get(key);
System.out.println(key + ": " + value);
}
if (reader.getMetadata() == null) {
System.out.println("No XML Metadata.");
} else {
System.out.println("XML Metadata: "
+ new String(reader.getMetadata()));
}
//escapade 2
PdfDictionary page = reader.getPageN(1);
PRIndirectReference objectReference = (PRIndirectReference) page.get(PdfName.CONTENTS);
System.out.println("=== inspecting the stream of page 1 in object " +
objectReference.getNumber() + " ===");
PRStream stream = (PRStream) PdfReader.getPdfObject(objectReference);
byte[] streamBytes = PdfReader.getStreamBytes(stream);
System.out.println(new String(streamBytes));
System.out.println("=== extracting the strings from the stream ===");
PRTokeniser tokenizer = new PRTokeniser(streamBytes);
FileOutputStream stream2=new FileOutputStream("D:\\Workspace\\Test\\HelloWorld.rtf");
StringBuffer strbufe = new StringBuffer();
while (tokenizer.nextToken()) {
if (tokenizer.getTokenType() == PRTokeniser.TK_STRING) {
System.out.println(tokenizer.getStringValue());
strbufe.append(tokenizer.getStringValue());
System.out.println(strbufe);
}
}
String test=strbufe.toString();
StringReader reader1 =
new StringReader(test);
int t;
while((t=reader1.read())>0)

stream2.write(t);
// Step 4: Add content to the document.
document.add(new Paragraph("Hello World!"));

// Step 5: Close the document. It will be written to the target output stream.
document.close();}
catch (FileNotFoundException fnfe) {
// It might not be possible to create the target file.
fnfe.printStackTrace();
} catch (DocumentException de) {
// DocumentExceptions arise if you add content to the document before opening or
// after closing the document.
de.printStackTrace();
}}}


I use this program to do it.. However, the formatting doesn't remain the same since, i am trying to get the stream.. IS there any other way to do it?
Thanks and regards,
Abin