Printing is divided into three stages:

1. Prepress → refers to the pre-printing work, generally refers to photography, design, production, typesetting, output film proofing, etc.

2. In printing → refers to the work in the middle stage of printing, and the finished product is printed by the printer.

3. Post-press → refers to the post-printing work, generally refers to the post-processing of printed materials including laminating (laminating), UV, oil, beer, bronzing, bumping, mounting, binding, cutting, etc., mostly used for publicity And packaging prints.