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Hi,<br>
<br>
On 2011-10-28 02:23, Paul A Norman wrote:<br>
<blockquote
cite="mid:CAG2d78BUnrd=DbuWqvxvu3dFFHWa9DA+f=Y_ct3CzQO=93JvFA@mail.gmail.com"
type="cite">
<div class="gmail_quote">
<div>Thanks Stefan sorry for the delay been very busy. Its used
when needing to check colour use in text,
graphs, graphics and illustrations for indication of the
result of grey-scale printing (sometimes inaccurately
called black and white printing) - invaluable to be able to
preview on screen without a printout. Means that any colours
that are too close when viewed in greyscale, can be colour
adjusted during editing.</div>
<div><br>
</div>
<div>Its already in the pdfview.exe (MUPDF a lightweight PDF and
XPS viewer)<span style="background-color: transparent; "> project
(Atrifex Software Inc) </span><a moz-do-not-send="true"
href="http://www.mupdf.com/" style="background-color:
transparent; ">http://www.mupdf.com/</a><span
style="background-color: transparent; "> </span><span
style="background-color: transparent; ">and very effective
there. </span></div>
<div><span style="background-color: transparent; ">It is
activated in their viewer, like everything else they do, by
a keyboard key, c (information in info.txt - does not appear
in the Help About box)</span></div>
</div>
</blockquote>
<br>
Thanks for the info. Indeed, I used it (the info, and MuPDF) just
today to check if some figures work reasonably well in grayscale.<br>
<br>
I've also added this to the pdf viewer wishlist. The one concern I
have about this is that doing it right is far from trivial. As BPJ
suggested, the only "proper" way of doing this is to do proper color
management. This is far beyond the scope for now, so we'd have to
settle for some approximation (which MuPDF most likely does
internally, too). But I guess that should be doable.<br>
<br>
-Stefan<br>
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