PS TEXT FORMAT Reference Manual

Font Characteristics
11387 Tandem Computers Incorporated H-9
Spacing. This is another characteristic that differentiates fonts. Fonts have
either fixed or proportional spacing. Fixed-spaced fonts are those for
which the intercharacter spacing is constant. Proportionally-spaced fonts
are those for which the intercharacter spacing varies with the natural shape
of the character. You can see the difference in the following diagram.
W
W
W
W
Fixed Spacing Inter-Character Spacing
Proportional Spacing
Inter-Character Spacing
I
I
I T H
I TH
When proportional spacing is specified and a proportionally-spaced font is
not available, a fixed-pitch font with the current pitch specification is
selected. The default spacing is fixed.
Note Proportionally-spaced fonts are not supported.