What is the size of the poster?

The standard sizes of posters are 13cm× 18cm, 19cm×25cm, 30cm×42cm, 42cm×57cm, 50cm×70cm, 60cm×90cm and 70cm× 100cm. The common sizes of posters are 50cm×70cm and 57cm×84cm.

The name poster originated in Shanghai and is a way of publicity. In the past, posters were used in plays, movies and other performances and activities. Shanghainese usually refer to professional theatrical performances as "going into the sea", while those engaged in professional theatrical performances are called "going into the sea".

Newspaper design is non-profit, and non-profit is the biggest role of poster design. Posters are different from commercial posters, and their starting point is not for commercial purposes and interests.