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

[Adam M. Goldstein]

On Sep 26, 2007, at 12:54 PM, Luis Sequeira 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.
>>
>>                                          -- Mike
>>
>>
>
> Both powerdot and (as has been said by another poster) beamer can  
> handle this perfectly.
>
> I use powerdot for my classes and usually keep two versions of the  
> \documentclass line, such as
>
> \documentclass[mode=present,paper=a4paper,display=slides]{powerdot}
>
> %\documentclass[mode=handout,display=slidesnotes,nopagebreaks] 
> {powerdot}
>
> and I just comment/uncomment one and the other, as appropriate, to  
> produce screen or handout versions. Works like a charm.
>
> Luis Sequeira
>

I use beamer in a similar manner, producing 4-up copies of the slide  
show by commenting and uncommenting short segments in the preamble,  
depending upon whether I am producing a version to show in class or a  
version to be distributed as lecture notes. The colors are altered as  
well as the number of slides per page.
=================================
Adam M. Goldstein PhD
Assistant Professor of Philosophy
Iona College
--
email:	agoldstein at iona.edu
web:	http://www.iona.edu/faculty/agoldstein/
tel:	(914) 637-2717
post:	Iona College
         Department of Philosophy
         715 North Avenue
         New Rochelle, NY 10801




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