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From: Hans Hagen <pragma@wxs.nl>
Cc: ntg-context@ntg.nl
Subject: Re: Inverting PDF figures
Date: Tue, 16 Nov 1999 10:11:39 +0100	[thread overview]
Message-ID: <3.0.6.32.19991116101139.007b48c0@pop.wxs.nl> (raw)
In-Reply-To: <19991116144556.A28063@mars.rcode.com.au>

At 02:45 PM 11/16/99 +1000, Tony Keating wrote:

>I'm currently creating a presentation using Context and including some PDF
>figures which we originally created for insertion in a paper document.
>Everything works very well, except the figures have black text (for printing
>on white paper). Is there any easy way for me to simply invert the colors of
>the figure? (ie. At the moment the figures is black on transparent, I want
>white on transparent)

You really are stretching tex to the limits now -)

The rather low level and cross you fingers approach is: 

\setupbackgrounds[page][background=screen,backgroundscreen=0]

\starttext

\dostartnegative
\externalfigure[test.pdf][page=1,height=10cm]
\dostopnegative

\stoptext

Alternatively, you can first negate the original. 

Hans

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      parent reply	other threads:[~1999-11-16  9:11 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-11-16  4:45 Tony Keating
1999-11-16  4:56 ` demo of context to web interface contact
1999-11-16  9:11 ` Hans Hagen [this message]

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