The gimp does transparent PNGs.  Just make the part that you want
transparet, transparent (let the white and grey grid show though) and
save it out.
PNG's can actually have full alpha channel worth of transparency, but
only mozilla seems to support it.
If you are running mozilla see www.azgeocaching.com 's logo at the top
left of the page for an example of full transparency.  If you go there
is a different browser it gives you a gif that have a dither patter to
fake the same effect... badly.

Brian Cluff


On Mon, 2002-08-19 at 12:47, Victor Odhner wrote:
> The PLUG web site is using some images from the Plug Presents
> web site:
>   http://www.plugpresents.com/images/unitywavelogo.jpg
>   http://www.plugpresents.com/images/copyleft.png
> 
> These appear against a white background on the Plug Presents
> site, but the PLUG site ( http://plug.phoenix.az.us/ ) has
> an image as a background.
> 
> How can I convert these two .PNG images to be transparent?
> If you know, please just point me at the tool in question
> and give me a pointer or two, to save me some learning curve.
> 
> Thanks,
> 
> Vic
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