Re: Context logo

[Wolfgang Schuster <schuster.wolfgang@googlemail.com>]

Am 14.03.2009 um 20:22 schrieb Xan:

>> I tried to show you the included pdf had a transparent background,  
>> the color is unimportant.
>
> Eh? Can you explain with more details this fact?. I see green the  
> blackground. Why do you say that it's not important and transparent?

Let me explain this on a example.

\setupcolors[state=start]
\starttext
\externalfigure[contextlogo.png][frame=on]
\page
\setupbackgrounds[page][background=color,backgroundcolor=red]
\externalfigure[contextlogo.png][frame=on]
\stoptext

You can on the first page the background of the picture is white,
to show the site of the picture I enabled the frame. On the second
page I set a background color for the entire page and as you can
see the background of the picture around the circle has the same
color as the page background, this could only happen because the
background of the picture is transparent. If you go now back on
the first page you can now see, the white background is not from
the picture but from the page background.

>>> I transform your logo.pdf with GIMP and applying transparency in  
>>> green color. The result I save as png file (gimp says me that eps  
>>> does not support transparency!? is it true?).
>>
>> Dunno about eps but AFAIK postscript 3(?) supports transparent  
>> colors.
>
> How do you pass from pdf to postscript?.
> When I run texexec prova.tex I get prova-mpgraph.1 that file says me  
> that it's eps. How can I pass from this file to transparent  
> postscript? or from pdf to postscript?
>
> In theory if postscript support transparent background, eps should  
> do (?)

Dou you need the eps generated or can you also use the pdf generated
from ConTeXt with the included metapost graphic.

>> If you're interested I can send you a better version with bold  
>> letters.
>
> Yes, I want to have "exactly" the same logo of the wiki.

Which size do you need?

Wolfgang

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