[OS X TeX] LaTeXiT & Keynote: color management when printing

[William Adams]

On Sep 25, 2007, at 12:23 AM, Michael S. Hanson wrote:

> 	This question may be slightly afield for many folks on this list,  
> but since in involves Macs and LaTeX, I hope the rest of you will  
> indulge me:
>
> 	I am using a 3rd-party Keynote theme along with LaTeXiT for a  
> course I am teaching this semester.  The theme has a dark blue  
> background with white text;  I use LaTeXiT to produce equations in  
> the same font and text color.  Of course, these equations are seen  
> by Keynote as embedded PDFs.
>
> 	For student versions of the slides (with space to write notes), I  
> generate PDFs of each lecture's notes using the Keynote print  
> option "Don't print slide background or object fills" -- this, in  
> combination with the ColorSync print option to use the "Grey Tone"  
> Quartz filter, yields compact versions of the slides that print  
> with black text on a white background.
>
> 	Except for the equations, that is -- these (naturally) are still  
> white and thus rendered "invisible" in the PDFs of the slide  
> handouts that the students print prior to lecture.  I could go in  
> and change each and every equation manually from a white to a black  
> text color (thereby having to maintain two versions of each lecture  
> presentation:  the white-on-blue lecture slides and the black-on- 
> white handouts).  But I'm hoping for a better alternative.  (The  
> slide-to-equation ratio is slightly over 2, but that still leaves  
> 15 - 30 equations per lecture to modify by hand.)
>
> 	I suspect that it should be possible to use CoreImage and/or  
> Quartz filters to first "invert" the colors (if that is the right  
> term) so that white text -> black text, dark blue background ->  
> light-colored background, etc., then filter a second time to create  
> a greyscale version of this transformed color scheme.  All via the  
> print dialog, or maybe Automator.  Unfortunately, I have not been  
> able to find a way to accomplish this objective (and I have neither  
> skills in, nor access to, Photoshop or Illustrator, etc.).
>
> 	If a LaTeX-based presentation package can do all this, as well as  
> manage data chart creation and complex slide transitions and  
> dynamic graphics, then I would like to know about it.  However, I  
> am not in a position to switch away from Keynote this semester, so  
> suggestions for a more direct solution would be greatly appreciated.

I would think it would be much better to just create an AppleScript  
which goes through and changes the equations back/forth between the  
two colour schemes.

William

-- 
William Adams
senior graphic designer
Fry Communications



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