"planographic printing"的定义和意义

What is "planographic printing"?

Planographic printing is a printing method where the image and non-image areas are on the same flat surface. In this process, the printing surface is treated so that ink sticks only to the areas that need to be printed. The inked image is then transferred to paper. This method is often used for creating detailed and colorful prints, such as art reproductions and posters.