| What Is Image Resolution (DPI)? |
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Resolution is the measurement of the number of dots or pixels laid out in a grid. 300 ppi (or dpi) is actually 300 pixels x 300 pixels in each square inch of the image. In theory, the greater the resolution, the more detail contained in the printed piece. For an image to print well, the resolution should be 300 dpi when the image is at 100% of it’s reproduction size. For example: if the image is going to print at 8 ½ x 11 side, it must have 300 dpi at that size. Please note that increasing the resolution in your imaging program (i.e. changing the resolution from 72 ppi to 300 ppi) does not add more total pixels to the image. The overall size of an image can be reduced to increase the image resolution. For example, if you have an image that is 17 x 25 at a 72 ppi, it can safely be converted to a 4 x 6 image at 300 ppi. Be cautious when increasing the size of an image. This will result in a loss of resolution. |