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Hazard
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>>98305A 10×10-pixel image on a computer display may require many more than 10×10 printer dots to accurately reproduce Right. They're not the same thing, just similar in principle. PPI is the image quality, while DPI is more like the image resolution/size.
If you increase the ppi of an image, it'll get smaller in print, but higher in print quality. If you increase the dpi of an image, it'll get spread out over an enlarged image.
This page details what I mean http://www.rideau-info.com/photos/mythdpi.html
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