PS TEXT FORMAT Reference Manual

Font Characteristics
H-10 11387 Tandem Computers Incorporated
Pitch. This characteristic describes the number of characters printed in a
horizontal inch (that is, characters per inch or CPI). Pitch applies only to
fixed-spaced fonts, because the number of characters per inch varies for
proportionally-spaced fonts. The default setting ten characters per inch.
The following diagram illustrates the difference between a line of text
printed in 10, 12, and 16.6 CPI.
This pitch is 10 characters/inch
This pitch is 12 characters/inch
This pitch is 16.66 characters/inch
INCHES
123
Height. This is the measurement of the body of the type in points. A point
is 1/72 inch. The body of the type is slightly greater than the distance from
the bottom of a lowercase letter to the top of a capital letter.
The default height is 12 points. The following diagram illustrates this
measurement by comparing an uppercase H in 42 point Helvetica with its
equivalent lowercase g. The other diagram illustrates different font
heights.
Hg
Font
Height
Helvetica 24 point
Helvetica 18 point
Helvetica 14 point
Helvetica 12 point
Helvetica 10 point
Helvetica 9 point
Helvetica 8 point
Helvetica 11 point
42 Point Helv
Baseline
Helvetica 7 point