In viewing a pdf the graphics appear fine, but when I extract the images using pdfimages, the jpegs are OK but all the pbm or ppm images turn out with reversed video (white is black and vice versa) but with the loss of SOME information, ie, a plot loses its black plot lines (they are not reversed to white, they either vanish or stay black - making them invisible with a black background).
Is there a way to extract the images in a pdf without reverse video occurring? praedor
