LP(8)LP(8)NAMElp - PostScript preprocessors
These programs are part of the lp(1) suite. Each corresponds to a
process in the -pprocess option of lp and exists as an rc(1) script in
/sys/lib/lp/process that provides an interface to a PostScript conver‐
sion program in /$cputype/bin/aux. The list of processors follows;
after each description is a bracketed list of lp options to which the
dpost converts troff(1) output for device post to PostScript. This is
used for files troff'ed on our UNIX systems that do not handle
UTF characters. [DLcimnorxy]
converts tex(1) output to PostScript. [Lcinor]
g3post converts CCITT Group 3 FAX data to PostScript. [DLm]
converts GIF image data to PostScript. [DLm]
is the default processor. It uses file(1) to determine the type
of input and executes the correct processor for a given (input,
hpost adds a header page to the beginning of a PostScript printer job
so that it may be separated from other jobs in the output bin.
The header has the image of the job's owner from the directory
of faces (see face(6)). Page reversal is also done in this pro‐
converts JPEG image data to PostScript. [DLm]
noproc passes files through untouched.
converts a Plan 9 image to PostScript, such as /dev/screen for
the whole screen, /dev/window for that window's data, and
/dev/wsys/.../window for some other window's data. [DLm]
converts PDF data to PostScript.
post passes PostScript through, adding option patches for paper tray
information. This does not always work with PostScript gener‐
ated on other systems.
ppost converts UTF text to PostScript. [DLcfilmnorxy]
converts troff(1) output for device utf (the default) to Post‐
Script. See /sys/lib/troff/font/devutf directory for troff font
width table descriptions. See also the /sys/lib/post‐
script/troff directory for mappings of troff UTF character space
to PostScript font space. [DLcimnorxy]
The file command is not always smart enough to deal with certain file
types. There are PostScript conversion programs that do not have pro‐
cessors to drive them.