PostScript,
PDF,
or
-.IR tex (1)
-or
.IR troff (1)
device independent output
file.
-.I Tex
-or
-.I troff
+.I Troff
output is simply converted to PostScript in order to be viewed.
It can also be used to view any number of
graphics files
.SH "SEE ALSO
.IR gs (1),
.IR jpg (1),
-.IR tex (1),
.IR troff (1)
.SH SOURCE
.B /sys/src/cmd/page.c