[PDFBOX-2128] CMYK images are not supported correctly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.5, 1.8.6, 2.0.0
• Fix Version/s: 2.0.0
• Component/s: PDModel
• Labels: PDJpeg cmyk images
• Environment: Windows 7 Professional; Running jvm: Java HotSpot(TM) 64-Bit Server VM - 1.6.0_26-b03 - 20.1-b02 - Sun Microsystems Inc
• Assignee: Unassigned
• Reporter: Ludovic Davoine
• Created: 10/Jun/14 12:03
• Updated: 03/Jul/18 06:28
• Resolved: 26/Feb/15 18:15

Description

I have a PDF with CMYK images inside and i need to extract the images in the RGB format. But the PDJpeg class seems to not work correctly; the colors are bad. Example:

• Original image in te PDF : http://ludoda.free.fr/IMAGE_IN_PDF.jpg
• Extracted image: http://ludoda.free.fr/IMAGE_EXTRACTED.jpg

You can download the PDF : http://ludoda.free.fr/PORSCHE_CMYK.PDF

and try my simple Test Case (I'm using PDFbox 1.8.5):

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import javax.imageio.ImageIO;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDResources;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDJpeg;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObject;
import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;

public class TestCase {
	
	public static void main(String[] args) 
	{
		try 
		{
			System.out.println("START EXTRACTING IMAGES...");
			read_pdf();
			System.out.println("COMPLETE");
		}
		catch (IOException ex) 
		{
		    System.out.println("" + ex);
		}

	}

	public static void read_pdf() throws IOException 
	{
		    PDDocument document = null; 
		    document = PDDocument.load("C:\\temp\\PORSCHE_CMYK.pdf");

		    @SuppressWarnings("unchecked")
		    List<PDPage> pages = document.getDocumentCatalog().getAllPages();
		    Iterator<PDPage> iter = pages.iterator(); 
		    int i =1;

		    while (iter.hasNext())
		    {
		        PDPage page = (PDPage) iter.next();
		        PDResources resources = page.getResources();
		        Map<String, PDXObject> pageImages = resources.getXObjects();
		        if (pageImages != null)
		        { 
		            Iterator<String> imageIter = pageImages.keySet().iterator();
		            while (imageIter.hasNext())
		            {
		            	String key = (String) imageIter.next();
		            	if(pageImages.get(key) instanceof PDXObjectImage)
		                {
		                	PDJpeg image = (PDJpeg) pageImages.get(key);
		                	
		                	// Test 1 : write2file
		                	image.write2file("C:\\workspace\\JAVA_PDFTools\\temp\\image" + i);
		                	
		                	// Test 2: getRGBImage
		                	BufferedImage bimage=image.getRGBImage();
		                	File outputfile = new File("C:\\workspace\\JAVA_PDFTools\\temp\\image" + i+"_buffered.jpg");
		                	ImageIO.write(bimage, "jpg", outputfile);
		                	i ++;
		                }
		            }
		        }
		    }
		}
}

Issue Links

• is duplicated by: PDFBOX-4127 JPEG reading fails
• is duplicated by: PDFBOX-4221 Numbers of source Raster bands and source color space components do not match
• is duplicated by: PDFBOX-4258 Numbers of source Raster bands and source color space components do not match
• relates to: IMAGING-136 Imaging.getImageInfo() fails to read JPEG file