🚀 go-pugleaf

In article <1992Aug3.155922.1@max.u.washington.edu> games@max.u.washington.edu  
writes:

    *  I understand postscript pretty well as a language, and I
    *  can make pretty things come out of a postscript printer.
    *  However, when it comes to fonts, I have a point of confusion.
    *  I know that I can download a font into a postscript printer,
    *  and I think that that is a postscript font.
Usually, if you download a font to a PostScript printer, it's a 
PostScript font in some way or another.  Even TrueType fonts, which
are not the same as Type 1 fonts, can be downloaded, in a crude sense,
by first downloading a TrueType interpreter.

    *  Now, what exactly are adobe type 1 (truetype) and adobe
    *  type 3 fonts.
Adobe Type 1 fonts are not the same as TrueType fonts -- they are
incompatible and competing formats.

Adobe Type 1 fonts are PostScript fonts.  They are written in a
tightly encoded subset of PostScript, written to strict rules.
Type 1 fonts contain ``hints'' to instruct the character rastering
engine how to make characters look good at small sizes and low
resolutions.  In recent months, uninformed and sloppy readers have
started calling Type 1 fonts ``ATM fonts'', for Adobe Type Manager
fonts.

    *  I think that the truetype 1's are the equivalent in some
    *  way of a postscipr font, but you have to do some conversion
    *  from 1 to the other.
There is no such label as a TrueType 1 font, unless this is a
reference to a version 1 TrueType font.  TrueType was a competing
font format designed as a joint effort between Apple and MicroSoft.
TrueType co-exists with PostScript Type 1 and PostScript Type 3 fonts.
Apple recently announced built in support for Adobe Type 1 fonts in the next
release of System 7, so the future of TrueType is less clear.

As for doing ``some conversion from 1 to the other'', there is
commercially available and share/free/ware software to convert
between TrueType, Type 1, and Type 3 fonts.  Packages I am personally
aware of are FontMonger by Ares and Alltype by Atech.

    *  And a type 3 is not scalable, but rather bitmap, so you
    *  can convert it to a fixed point postscript font?
PostScript Type 3 fonts are user defined fonts.  They are as
scaleable as you wish them to be.  Unlike Type 1 fonts, which are
written to a rigid style using a specialised subset of PostScript
operators, Type 3 fonts are written using arbitrary PostScript
operators.  Type 3 can be described as PostScript sequences, or
bitmaps if you wish.  Type 3 fonts don't contain hints to the
rasteriser.  The Adobe Blue Book contains examples of both forms.

    *  Or am I way off base here.
Quite.

	........  Henry