[PDFBOX-616] Invalid Images Returned

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 0.8.0-incubator
• Component/s: PDModel
• Labels: PDXObjectImage image invalid null
• Environment: Multiple (Windows)
• Assignee: Andreas Lehmkühler
• Reporter: James A. Thomas
• Created: 11/Feb/10 02:55
• Updated: 29/May/11 17:50
• Resolved: 29/May/11 17:50

Description

When getting images from a PDF document using PDXObjectImage (code fragment below), it returns an image with invalid characteristics. The PDXObjectImage is not null, but attributes like .getColorSpace() return null. The image has a height and width, but the getRGBImage() method returns null.

This happens on EVERY image of the attached file. Code fragment and output is shown below.

If I use the write2file() method of PDXObjectImage to write out the image to a fil, then I get a valid image. (At least, it displays fine.)

Code Fragment:

// Get a list of pages from the input PDF document
List pages = InputDoc.getDocumentCatalog().getAllPages();
// Process each page
int i = 0;
for (Object obj : pages)
{
String Barcode = null;
i++;
PDPage page = (PDPage)obj;
// Get the image on the page and process it
PDResources resources = page.getResources();
Map images = resources.getImages();
System.out.println("Found " + images.size() + " images on Page " + i);
if( images != null )
{
Iterator imageIter = images.keySet().iterator();
while ( imageIter.hasNext() )
{
String key = (String)imageIter.next();
System.out.println("key = " + key);
PDXObjectImage image = (PDXObjectImage)images.get( key );
if (image != null)

{ System.out.println("Image subtype = " + image.SUB_TYPE.toString()); System.out.println("Image suffix = " + image.getSuffix()); System.out.println("PDX image has height = " + image.getHeight() + " and width " + image.getWidth()); // Convert image to a Buffered Image, so we can // look for a barcode and decode it BufferedImage RGBimage = image.getRGBImage(); if (RGBimage == null) System.out.println("RGBimage is null"); }

}
}

Output:

Found 1 images on Page 1
key = Obj3
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 2
key = Obj8
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 3
key = Obj13
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 4
key = Obj18
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 5
key = Obj23
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 6
key = Obj28
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 7
key = Obj33
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 8
key = Obj38
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 9
key = Obj43
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null
Found 1 images on Page 10
key = Obj48
Image subtype = Image
Image suffix = tiff
PDX image has height = 2335 and width 1651
RGBimage is null