1，Replicability

The printing industry is a special processing industry, whose task is to copy the graphic information in the original manuscript, which is the basis and foundation of the printing operation.From the point of view of information, the printing process is the process of digitizing analog information (A/D conversion) -- processing digital information -- reproducing digital information analog (D/A conversion).

2， Artistry

Printing is the crystallization of technology and art. It has always been recognized as the "sacred art" and the "mother of civilization" in the world. The process of copying manuscripts is also the process of artistic processing.Printing practitioners should have a certain artistic appreciation ability, need to accurately grasp the artistic characteristics and style of the original manuscript, using the appropriate means of reproduction and technology, to reproduce the charm of the original, and through image processing to enhance its artistic expression.