On Friday 15 February 2008 10:36:02 Taco Hoekwater wrote:
xpdf (and its derivatives) does not support 16-bit color. No warning, the pdf is just displayed incorrectly.
It 'works' in pdflatex in xpdf because the file does not contain a 16-bit image at all, it is automatically downgraded.
If you want that same effect in context, set \pdfminorversion=4 % or some other low number
You document will be loosing functionality, and gaining portability.
Best wishes, Taco
I am posting this to the mailing list to share the answer/solution. \externalfigure[16-bit.png] indeed works correctly. However, xpdf/kpdf/etc. do not handle 16-bit color, unlike acroread and ghostview. Note also that pdflatex automatically downgrades 16-bit color images to 8-bit.