What is a photo and what is inkjet in an advertising company?

In advertising companies, photography and inkjet are commonly used advertising techniques and expressions.

Portrait refers to a high-definition photo presented by shooting or scanning the original picture, and then processing and printing it. These photos can be used in product advertisements, people photography and other fields, and can also be displayed in the form of photo albums and exhibition boards.

Inkjet is to spray patterns and characters directly on the surface of materials with a professional printer to form colorful and realistic patterns. This technology is mostly used for outdoor advertising screen output, and the output screen is very large. For example, many billboards beside the expressway are the output of the inkjet printer.