man(1) Manual page archive

     LP(8)                                                       LP(8)

          lp - PostScript preprocessors

          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.
          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 sepa-
                     rated 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]


     LP(8)                                                       LP(8)


          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.