[OS X TeX] transparency

[Roussanka Loukanova]

Hi Alessandro,

What latex code did you use to get the command \includegraphics making the 
png image background, i.e. to be able to get the text over it?

Roussanka

On Sun, 24 Feb 2008, Alessandro Languasco wrote:

> dear Bruno, your remark solved the problem !!
>
> Thanks again !
>
> 	Alessandro
>
> On 24/feb/08, at 10:15, Bruno Voisin wrote:
>
>> Le 24 févr. 08 à 10:01, Alessandro Languasco a écrit :
>> 
>> > So it would be great to pass a transparency factor to the 
>> > \includegraphics command,
>> > but it seems to me that the graphicx package does not support
>> > this option... so I was wondering if some other
>> > package does.
>> 
>> Not sure it can help, but still: the documentation of pdfTeX 
>> /usr/local/texlive/2007/texmf/doc/pdftex/manual/pdftex-a.pdf says on p. 40
>> 
>> Since pdfTEX 1.30.0 also the alpha-channel of png images is processed if 
>> available; this allows
>> embedding of images with simple transparency
>> 
>> So it seems that if you can prepare a png version of the logo with the 
>> required transparency, then this transparency will be honoured once the png 
>> file has been included in the pdfteX output. Or did I misunderstand 
>> something?
>> 
>> Bruno Voisin
>>