Public bug reported:

Using latest Hardy, on many PDFs I cannot save or copy the correct image
(that is to say, almost all of the ones I've tried). If PDF image-saving
support is so buggy, it should be temporarily disabled in the final
Hardy release instead that kept there as a half-working feature -- at
least imho.

In the attached test-case (even if quite ugly, I just took some random
images lying there on my hard disk), try copying/saving the images you
see into e.g. OpenOffice.org Writer. There are a lot of issues:

* Transparent PNGs are rendered with a black background. 
* If you try to select the image on the background (the one with the flag), you 
probably get any of the other images saved instead. For example, try in the 
upper-right corner of the picture, where you see the blue sky. No image is 
stacked above that area, neither a transparent one.
* Then there's the transparence issue: try copying the image in space labeled 
as "A". You don't get the chest, but the image of the zealot. Transparence 
should be taken in account and images with alpha 255 on a particular point 
(where you do your right click) ignored in the z-stack -- users expect the 
chest to be copied, because that's what they see.

Probably at least part of this gets fixed by updating poppler to 0.8.0 for 
Hardy. See also GNOME bug #310008.
I can attach other test-cases if needed, I should be able to find easily 
something under a CC license.

** Affects: evince
     Importance: Unknown
         Status: Unknown

** Affects: poppler (Ubuntu)
     Importance: Undecided
         Status: New

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Cannot save/copy images properly from evince
https://bugs.launchpad.net/bugs/210783
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