I worked in a printing factory for a year, and I actually want to learn what you want, because those are technical and the salary is quite high! The first two are graphic design, which is available in general computer training places, at least in the back, such as typesetting, typesetting and typesetting. Personally, I think it is best to do it in printing. With the help of a master, I can learn quickly, but there are also people who specialize in CPT, so it is rare. Anyway, I haven't found that kind of professional place.