1. The printing resolution is the value provided for printing, which has no meaning for the image in the computer, and has nothing to do with the quality and clarity.
2. The unit used in image resolution means: the number of pixels expressed per inch in the image, this resolution cannot be changed after the image is imaged, and the resolution is adjusted later to meet the needs of printing.
3. In fact, there is no resolution of images in the computer (all images are a "resolution"), only pixel discrimination.
4. Printer resolution (DPI) refers to the number of dots that the printer can print per inch (Dot Per Inch), that is, printing accuracy (DPI), which is an important criterion for measuring printing quality.