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Article View: comp.lang.postscript
Article #5717

Postscript Font Scaling & Reduction

#5717
From: Walter C3arlip
Date: Wed, 18 Nov 1992 04:55
34 lines
1848 bytes
I have a technical question to ask about Postscript Font Scaling and its
relation to font design.  As I understand it, a given style of type will
have a different design depending upon the point size it is to be printed
at, e.g., Times Roman at 12pt will have lines that are wider and darker
relative to the hight of the letter than Times Roman at 20pt.

Now, when one uses postscript fonts, one has outline descriptions of the
font.  Is it possible to determine what point size the font was designed
for?  When one prints the font at a larger size, is the font scaled 
linearly or is postscript smart enough to 'redesign' the font for the
larger size? 

Let me put this an another context.  Suppose one wants to produce 
a journal using a 300dpi printer.  If one uses a 24pt design, and
then uses photo reduction to 12pt, can one effectively get 600dpi
resolution (I'd expect this to work if the fonts are scaled linearly),
or will the reduced copy look like type designed for 24pt and
then shrunk (so that the type does not match its design size)?

I'm looking for the straight dope here, as I have already gotten 2 opposite
answers to this from people I'd expect to know. 

Thanks!

--Walter



-- 
_____________________________________________________________________________
Walter C3arlip				    **** carlip@ace.cs.ohiou.edu ****
(the "3" is silent)			
_____________________________________________________________________________
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Path: arc1-ca.pugleaf.net!sparky!uunet!charon.amdahl.com!pacbell.com!att-out!oucsboss!oucsace!carlip
From: carlip@oucsace.cs.ohiou.edu (Walter C3arlip)
Newsgroups: comp.lang.postscript
Subject: Postscript Font Scaling & Reduction
Message-ID: <1992Nov18.045514.4005@oucsace.cs.ohiou.edu>
Date: 18 Nov 92 04:55:14 GMT
Distribution: na
Organization: Ohio University Mathematics
Lines: 34