What color separation software is generally used for packaging pre-press color separation? Or directly in PS or CDR to complete the color separation?

Now the so-called color separation, mostly refers to the document of the printing plate, process version, beer version, etc. out, and the real meaning of color separation, is completed by the film company. Designers can not care, as long as the version of the good to the film company on the line.

Generally use CDR or AI direct sub-page on the line