Convert Bitmap object to indexed PNG

[Dylan Parry]

Hi,

First off, I am both new to C# and to this group, so appologies if this
is a stupid question! Secondly, is there an FAQ for this group?

Okay, so I have a bitmap object that I have created, and I am adding two
PNG files to it in order to create a watermark effect. (Is this a stupid
way to do it?) When it comes to saving the image, I am using

myImage.Save (workingDirectory + "\\test.png", ImageFormat.Png);

and the resulting file is a 24bit PNG file, but I would like it to be an
8bit indexed file. How would I go about doing this?

TIA

--
Dylan Parry
http://webpageworkshop.co.uk -- FREE Web tutorials and references