Dots per inch (DPI or dpi) is a measure of spatial printing, video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (25.4 mm). Similarly, dots per millimetre (d/mm or dpmm) refers to the number of individual dots that can be placed within a line of 1 millimetre (0.039 in).
Dots per inch (DPI or dpi) is a measure of spatial printing, video or image scanner dot density, in particular the number of individual dots that can be placed in a line within the span of 1 inch (25.4 mm). Similarly, dots per millimetre (d/mm or dpmm) refers to the number of individual dots that can be placed within a line of 1 millimetre (0.039 in).
Source: Wikipedia "Dots per inch" · CC BY-SA 4.0
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