Promotional flyers have a certain timeliness. In general, printing promotional flyers is to promote the product in a short period of time and make many people aware of the printed material in a short period of time. Currently, there are a significant number of people in the industry who distribute promotional flyers, and the styles of printed materials vary. In order to enable humans to understand the content of promotional flyers, the printing and production of promotional flyers in normal form usually have the following characteristics: 1. The color of printed promotional flyers is particularly strong, and in normal form, promotional flyers may be designed in bright styles. 2. There is relatively little textual content, and in addition, the content is a comprehensive description. 3. The materials of printing media have significant differences, and printing media are not limited to paper. 4. There are differences in the form of printing media. For example, during the promotion period of Apple phones, the promotional flyers will be made in the form of folded pages in the shape of Apple phones, and the homepage design page will be similar to the back of the phone.