LP(8)                                                       LP(8)

     NAME
          lp - PostScript preprocessors

     DESCRIPTION
          These programs are part of the lp(1) suite.  Each corre-
          sponds 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 conversion program in
          /$cputype/bin/aux.  The list of processors follows; after
          each description is a bracketed list of lp options to which
          the processor responds:

          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 charac-
                    ters.  [DLcimnorxy]
          dvipost   converts tex(1) output to PostScript.  [Lcinor]
          g3post    converts CCITT Group 3 FAX data to PostScript.
                    [DLm]
          gifpost   converts GIF image data to PostScript.  [DLm]
          generic   is the default processor.  It uses file(1) to
                    determine the type of input and executes the cor-
                    rect processor for a given (input, printer) pair.
          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 processor.
          jpgpost   converts JPEG image data to PostScript.  [DLm]
          noproc    passes files through untouched.
          p9bitpost 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]
          pdfpost   converts PDF data to PostScript.
          post      passes PostScript through, adding  option  patches
                    for  paper tray information.  This does not always
                    work with PostScript generated on other systems.
          ppost     converts UTF text to PostScript.  [DLcfilmnorxy]
          tr2post   converts  troff(1)  output  for  device  utf  (the
                    default)         to        PostScript.         See
                    /sys/lib/troff/font/devutf  directory  for   troff
                    font  width  table  descriptions.   See  also  the
                    /sys/lib/postscript/troff directory  for  mappings
                    of  troff  UTF  character space to PostScript font
                    space.  [DLcimnorxy]

     SOURCE
          /sys/src/cmd/postscript

     LP(8)                                                       LP(8)

     SEE ALSO
          lp(1)

     BUGS
          The file command is not always smart  enough  to  deal  with
          certain  file  types.   There are PostScript conversion pro-
          grams that do not have processors to drive them.