Pixels per cm?

Subject: Pixels per cm?
From: geoff-h -at- MTL -dot- FERIC -dot- CA
Date: Fri, 7 Nov 1997 12:18:20 -0600

Sonja Draeger is <<creating a cover in Paint Shop Pro...
Can someone please tell me how many pixels there
are in one centimeter?>>

A "pixel" is a "picture element" or, less esoterically, a
dot on the page. So the answer depends entirely on how
you'll be outputting your graphics. Laser printers range
from 300 to 1200 dots per inch, and typesetters go up to
ca. 2500 dpi. To figure out pixels per cm, divide by 2.54
(the number of cm per in.).

One minor gotcha: your software may be referring to
_screen_ pixels (each of the little glowing dots you see on
the screen), and these are usually manufactured around 72
per inch. Converting from this to print resolutions isn't
straightforward; check your manual to see how the software
represents the higher print resolution to appear within the
72 ppi resolution of the screen image.

--Geoff Hart @8^) geoff-h -at- mtl -dot- feric -dot- ca Disclaimer:
Speaking for myself, not FERIC.


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