How many pixels per cm does it take to design an inkjet billboard with PS?

When designing inkjet billboards in Photoshop, the number of pixels per cm depends on the resolution of inkjet equipment. Generally speaking, the resolution of an inkjet printer may be between 200dpi and 600dpi. The higher the dpi of the printing device, the higher the quality of the printed image will be.

Therefore, in order to obtain the best inkjet effect, it is suggested that when designing billboards in Photoshop, the number of pixels per cm should be set to about twice the actual dpi of inkjet equipment. For example, if the resolution of the inkjet device is 300dpi, the number of pixels per cm should be 300 x 2 = 600 pixels.

Of course, the specific pixel number also needs to consider the size of the billboard, the degree of detail and other factors. If the billboard is large and requires high details, then the number of pixels per cm can be appropriately increased. If the billboard is small and the details are low, then the number of pixels per cm can be reduced appropriately.

In a word, in order to get the best painting effect, it is suggested to contact the painting equipment supplier when designing the billboard, to understand the actual resolution of the equipment and design on this basis.