KT plate can be divided into cold composite and hot composite from the mature production technology at present. The products produced by these two different technologies are called (cold composite plate) cold plate and (hot composite plate) hot plate.
You are always familiar with the place where you buy brushes and gouache.
Resolution is a parameter used to measure the amount of data in bitmap images. Usually expressed as pixels per inch (ppi) and dots per inch (dpi).
Will the pictures with high dpi value be printed more clearly than those with low dpi value? Not necessarily. Generally, 300dpi(4r) is enough, and the smaller it is, the larger it is (500dpi). The human eye cannot tell the difference.
This thing can't be changed in PS, unless you make a picture in PS, the DPI of the picture you open from the outside is fixed, and PS can't be changed.
/view/7687.htm have a look.