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What is meant by the term “resolution” and what should the resolution value of the supplied art work be?

April 26, 2017art meant resolution supplied term value

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What is meant by the term “resolution” and what should the resolution value of the supplied art work be?

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Resolution refers to the number of dots per inch (dpi) of an image that is output to a media. This applies to raster images only. When supplying a file to be included as a graphic on a sign, the general rule is for the graphic to be at least 150 dpi (at the size that it will be produced). So, for example, if one needs for a graphic to be reproduced at 20″ tall and has a 10″ tall raster graphic file to supply, the supplied graphic file should be at least 300 dpi because the resolution is halved when you double the size of an image (without digital manipulation).