This is a little program I created, still verry WIP but you can generate normal maps, invert an image, and greyscale it. My own beta version also includes a seamless texture generator, but it doesn't blur the edges correctly yet so it shows with seams in the middle . It can save images in jpeg format, bmp format and gif format (not the most usefull ones) but the next version will include TGA and PCX.

Download TextureTools

It doesn't start on my pc.

Ok, now you just have to run setup.exe (the build didn't succeed last time )

Nice tool, works great as far as I can say.

Have not been able to install the application.
It generates error -

Unable to install or run the application. The application requires that assembly Microsoft.DirecxtX.Direct3D version 1.0.2902 be installed in the Global Assembly Cache(GAC) first. Please contact your system administrator.

I would like to know system requirements for your software.
I am using XP1.

It's working for me, but the Normal map function freezes the program.

Do you use vista? Because if you do you'll have to run it in administrator mode

Oh wait, I've got the problem. I used some DirectX dependency's to test a little but didn't use them further. Problem solved (I hope )

It works GREAT, and I like the procedure for generating the Normal map. It would be great if one can draw on map too. And please make it so that the shader on a model can be loaded as seen in realtime too. There should be an option for intensity of normal too.