Get image size from PDImageXObject

Question

Is there a way to find out the size of the image (in bytes, in whatever compressed image format they're stored in) in PDImageXObject without extracting it into BufferedImage?

Answer 1

Call img.getCOSObject().getLength(), this will give you the length of the COSStream on which the image is based. If the image has a mask, you'll have to do the same with it. Call img.getMask() to check whether there is one.