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What does Dots Per Inch (DPI) Really Mean?

Fresh5 days ago
Mar 15, 20262815 views
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Problem

I'm quite confused by the nomenclature; what does DPI really mean? The way I interpret it, it says how many pixels there are per inch of the display. Now naturally, you can't change this (not on LCDs, anyway). But operating systems have a setting to "change" the DPI... but what does that mean? If I…

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Fix for: What does Dots Per Inch (DPI) Really Mean?

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Text size is normally expressed in points (of which there is a fixed value of 72 per inch on digital displays), not pixels. Therefore 12-point text will take 12/72*96=16 pixels on a 96 DPI display, but 12/72*110=18.3 pixels on a 110 display. Unless …

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