/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */

package part3.chapter10;

import java.io.FileOutputStream;
import java.io.IOException;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.PdfWriter;

public class CompressImage {

    /** The resulting PDF file. */
    public static final String RESULT1
        = "results/part3/chapter10/uncompressed.pdf";
    /** The resulting PDF file. */
    public static final String RESULT2
        = "results/part3/chapter10/compressed.pdf";
    /** One of the resources. */
    public static final String RESOURCE
        = "resources/img/butterfly.bmp";

    /**
     * Creates a PDF document.
     * @param filename the path to the new PDF document
     * @throws    DocumentException 
     * @throws    IOException
     */
    public void createPdf(String filename, boolean compress) throws IOException, DocumentException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(filename));
        // step 3
        document.open();
        // step 4
        Image img = Image.getInstance(RESOURCE);
        if (compress)
            img.setCompressionLevel(9);
        document.add(img);
        // step 5
        document.close();
    }

    /**
     * Main method.
     *
     * @param    args    no arguments needed
     * @throws DocumentException 
     * @throws IOException 
     * @throws DocumentException 
     * @throws IOException
     */
    public static void main(String[] args) throws IOException, DocumentException {
        new CompressImage().createPdf(RESULT1, false);
        new CompressImage().createPdf(RESULT2, true);
    }
}