[OS X TeX] White vs. Transparent?

[Alan Munn]

At 10:33 PM -0500 3/24/06, david craig wrote:
>
>Still, there is clearly a difference between "white" and 
>"transparent". For example, equations dragged from LaTeXIt have a 
>transparent or nonexistent or whatever background, while in all 
>previous methods I have used the pdf's generated have a white 
>background.  (Hell, taking one of LaTeXIt's eqn pdfs and opening it 
>in GraphicConverter and re-saving turns the transparent background 
>to white.)
>
>Is there any tool for going the other way?  Or any way in pdftex to 
>tell it to produce a transparent background?

On a related note, how come the transparent background doesn't get 
preserved when importing LaTeXit's PDFs to Powerpoint?  Is there a 
way to keep it transparent, or is this a property/feature/bug of 
Powerpoint?

(And please don't let's turn this into a debate about why I should 
use Beamer or Keynote...; my Powerpoint presentations require fast 
integration of Excel charts etc. from multiple authors using both PCs 
and Macs, none of whom use LaTeX.)

Alan

-- 
Alan Munn                                                   amunn at msu.edu
Department of Linguistics                                   amunn at acm.org
and Germanic, Slavic, Asian and African Languages   Fax.  +1-517-432-2736
Michigan State University, East Lansing MI 48824    Tel.  +1-517-355-7491
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