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______________________ Application Notes and Page Design A-17
Pitch
Pitch, sometimes referred to as cpi or characters per inch, indicates
the number of characters which can fit horizontally within one inch.
For example, your printer’s Courier typeface printed at 12 points has
a pitch of 10. Ten characters fit within an inch and the size is 12
points in height.
1 2 3
This is 10 characters/inch pitch
This is 12 characters/inch pitch
This is 15 characters/inch pitch
Fig. A.6 Pitch Samples
Point Size and x-Height
Point size comes from an old typesetting term for a typeface’s
height. This is measured from the top of highest ascender (the
upward stroke on a character) to the lowest descender (the downward
stoke) within a character set (fig. A.7). One point equals 1/72 of an
inch.