doc to pdf convertion

hi ,
I need to convert a .doc file that contains tables,pictures and text to pdf using Itext.
I tried but it convert only texts.
code i tried is
package de.vogella.pdf.write;
import java.io.*;
import java.awt.*;
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
import java.io.*;
import java.util.zip.*;
public class FirstPdf
{
public static void main(String arg[])throws Exception
{
System.out.println("Hello RoseIndia");
Document document = new Document(PageSize.A4, 36, 72, 108, 180);
PdfWriter.getInstance(document,System.out);
PdfWriter.getInstance(document,new
FileOutputStream("D:/pdfFile.pdf"));
document.open();
ZipInputStream zip = new ZipInputStream(new
BufferedInputStream(new FileInputStream("D://01 Finacle Core Basics.zip")));
ZipEntry entry;
while((entry = zip.getNextEntry()) != null)
{
byte data[]=new byte[1024];
int count;
String text="";
while((count=zip.read(data,0,1024))!=-1)
{
text=new String(data);
document.add(new Paragraph(text));
}
}
document.close();
}
}

If some done any similar please help me

Very urgent ......