+++ Bruce [2013-12-14 09:16 +1300]:
> 
> >I have just noticed that Adobe Acrobat and the (unnamed) pdf viewer
> currently opening from Firefox on this machine render coloured files very
> differently. It's not just that the tones are different, but, for example,
> in Acrobat boulders and the passage containing them are the same shade. In
> the other viewer the boulders render a darker tone than the remainder of the
> passage. Same goes for calcite flows, though not, seemingly, for sand.
> 
> 
> Yes, see this page
> http://therion.speleo.sk/wiki/doku.php/contrib:externalviewers#examples_of_r
> endering_differences_between_pdf_viewers and the commentary above it.

Bruce - that's a very handy page. But it's missing the test therion
source you used to do the test. If you could add that, then others could
do other tests, on later versions, and on linux viewers, for example.

At least in linux world (but probably on other OSes too) there is a
fairly small number of underlying PDF rendering engines (2 or 3) with a
lot of differet UIs wrapped round them. I would be interested to try the
above on  all the Debian PDF viewers, which will probably a) show which
engine they are using and b) help track down bugs.

Wookey
-- 
Principal hats:  Linaro, Emdebian, Wookware, Balloonboard, ARM
http://wookware.org/

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