\newfont ¶This command is obsolete. This description is here only to help with old documents. New documents should define fonts in families through the New Font Selection Scheme which allows you to, for example, associate a boldface with a roman (see Fonts).
Synopsis:
\newfont{\cmd}{font description}
Define a command \cmd that will change the current font.
The control sequence must not already be defined. It must begin with a
backslash, \.
The font description consists of a fontname and an optional
at clause. LaTeX will look on your system for a file named
fontname.tfm. The at clause can have the form either
at dimen or scaled factor, where a
factor of ‘1000’ means no scaling. For LaTeX’s purposes,
all this does is scale all the character and other font dimensions
relative to the font’s design size, which is a value defined in the
.tfm file.
This defines two equivalent fonts and typesets a few characters in each.
\newfont{\testfontat}{cmb10 at 11pt}
\newfont{\testfontscaled}{cmb10 scaled 1100}
\testfontat abc
\testfontscaled abc