Image copied from PDF is black
Normally I find I can extract an image from a PDF by selected it, copying it, then pasting it into an image program such as MS Paint.
However, I have a series of PDFs where, if I try this, the image is black.
The Snapshot functionality is not appropriate here since that can only be used to select a viewable area onscreen and in this case the image is much bigger than the screen (and if I zoom out, the resulting image is low resolution).
Any help appreciated,
P.
