Dpi is an abbreviation for (English Dots Per Inch), which is the unit of resolution for printers, mice, etc. This is one of the main parameters for measuring the printing accuracy of a printer. Generally speaking, the larger the value, the higher the printing accuracy of the printer.
Dpi refers to the pixels per inch, which is the scanning accuracy. Internationally, it is calculated how many pixels in a square inch area. The smaller the dpi, the lower the resolution of the scan. Due to the transmission speed of the network, the pictures used on the network are 72dpi, but the picture cannot be used for flushing photos. It must be 300dpi or higher 350dpi. For example, to print a 46 inch photo, the scanning accuracy must be 300dpi, then the file size should be (4300)(6300)=1200 pixels*1800 pixels.
Dot per inch (dpi) pixel converter
Calculation formula: pixel unit = (cm * dpi) / 25.4
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