User Guide

Notice that the outline at the right side of the top bar
descends below the bar. This type of structure is called
a “stub.” The character would conform to the intended
outline better if a pixel were turned on in this area. Standard
dropout prevention will not find stubs. The third character
was drawn with “More” dropout prevention. It obviously
has too many pixels turned on. (Due to a quirk in the
TrueType Fontscaler, the pixel that is turned on is to the left
of the end of the bar.)
Character mapping
Most of the time, you will never change the default, which
is “Standard.” Choosing this option gives you a normal font
with all the characters you would expect, in the places
defined by Apple and Microsoft for a standard TrueType
font.
Sequential character mapping, on the other hand, means that
in the generated TrueType font, characters are stored in the
same order as they appear in the Font Window. This option
is potentially useful for non-Roman character sets, and non-
standard fonts. This is really of marginal use on the
Macintosh; unless you are a real font guru, don’t worry
about it. See the section on encoding vectors for how
sequential character mapping can be used to mimic different
font encoding.
PostScript Type 3
The steps for generating a Type 3 font are almost identical
to those for generating a Type 1 font. But why would
anyone want to generate a Type 3 font, since it won’t
work with ATM and is not as legible as Type 1 when
printed to a 300 dpi printer? The advantage is the flexibility
of the Type 3 format.
Fontographer User's Manual
7: Generating and Exporting Fonts Page #8