What is the acceptable resolution?

In order for an image to print correctly, all file formats must be submitted at a resolution of 350 dpi at 100% of the final print size. When file resolution is lower than 350 dpi, the final print will have a substantial drop in the image quality. For signage, please submit files with a resolution of 150 dpi.

A resolution of 350 dpi means 350 dots per every inch in the design.