This Class extract Stream Objects from a PDF a document and save them in files in unfiltered state

StreamSaver.java

package com.kbashar.pdfboxtry;

import org.apache.pdfbox.cos.COSBase;
import org.apache.pdfbox.cos.COSObject;
import org.apache.pdfbox.cos.COSStream;
import org.apache.pdfbox.pdfparser.PDFParser;
import org.apache.pdfbox.pdmodel.PDDocument;
import sun.misc.IOUtils;

import java.io.*;
import java.util.List;

/**
 * Created by kbashar on 3/4/15.
 */
public class StreamSaver {

    public void saveStreams(String fileName) throws IOException {
        String rawFileName = "raw_";
        String filteredFileName = "filtered_";
        
        PDFParser parser = new PDFParser(new FileInputStream(fileName));
        parser.parse();
        List<COSObject> objects = parser.getDocument().getObjects();
        int count =0;
        for (COSObject object : objects) {
            COSBase baseObject = object.getObject();
            if (baseObject instanceof COSStream) {
                COSStream stream = (COSStream) baseObject;

                FileOutputStream file = new FileOutputStream(rawFileName+count++);
                byte[] bytes = org.apache.pdfbox.io.IOUtils.toByteArray(stream.getUnfilteredStream());
                file.write(bytes);
                file.close();
            }
        }
    }

    public static void main(String[] args)  {
        StreamSaver ss = new StreamSaver();
        if (args.length == 1)   {
            try {
                ss.saveStreams(args[0]);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
}