How do I create a skin?

i don’t know ware this question would go but can some 1 teach me how to create a skin for a gun or a vehicle

um i don’t understand sorry

That’s the Valve developers wiki, search there. Altrought many facepunchers know about making skins, you may go there.

You need these:
VTF Edit
Paint.NET (Or some other photo-shopping program. This one is 100% free and legal.)
Additional Help

Via “VTFEdit” you can export the .vtf skins into any other file extension. (tga, png, jpeg, etc.)
There is no use or requirement for conversion software. (I.e. VTF2TGA)
Good Luck.