Specifications

Bitmap and outline fonts
Fonts that are installed on the printer or computer are classified
in two groups according to the method used to create them:
bitmap fonts and outline (or scalable) fonts.
a
A bitmap font consists of a dot-by-dot representation of a
character or image. Bitmap fonts tell the printer or monitor
which dots or pixels to turn on and off to create a character.
Since a bitmap is a fixed pattern of pixels, a separate bitmap
font is needed for each point size. For example, 10-point
Times and 12-point Times require separate bitmap fonts.
If your computer does not have the correct bitmap size
installed, the system wilI substitute another font. The result
is often a jagged looking character.
P
An outline font is created from a mathematical formula that
describes the outline of each character. When the printer
needs a certain size of an outline font, it uses the formula to
render the character in the requested size, filling in the
outline. Only one outline is needed for each font since the
outline formula contains all the necessary information for
rendering at any size. Thus outline fonts always look
smooth and well-shaped, no matter the size.
bibnap
font outline font
3-6 Fonts