GD-Sharp is a .NET wrapper for the GD Library, developed with mono for Linux and Windows. It is written in C# and it uses GD 2.x and it can be downloaded from here.
It started mainly as an attempt to learn more about mono and the interop. It works with Linux out-of-the-box. In order to use it with Windows, bgd.dll has to be installed from the GD homepage (http://www.boutell.com/gd/) and the steps bellow to build it for Windows have to be followed.
GD-Sharp contains a sample GDDemo.cs, that is actually the counterpart of gddemo.c that is included in the GD package and when run it generates a couple of pictures.http://gd-sharp.sourceforge.net/
What is the GD library? GD is an open source code library for the dynamic creation of images by programmers. GD is written in C, and "wrappers" are available for Perl, PHP and other languages. GD creates PNG, JPEG and GIF images, among other formats. GD is commonly used to generate charts, graphics, thumbnails, and most anything else, on the fly. While not restricted to use on the web, the most common applications of GD involve website development.http://www.boutell.com/gd/