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dvispc(1)                                                            dvispc(1)




NAME

       dvispc - Modify a DVI file to be page-independent in specials


SYNOPSIS

       dvispc [-c] [-bvz] input_dvi_file [output_dvi_file]

       dvispc -d input_dvi_file

       dvispc -s [-p..] input_dvi_file [output_text_file]

       dvispc   -a   [-ltv]   [-J..]   [-p..]   [-r..]   input_dvi_file  [out-
       put_text_file]

       dvispc -x[..]  [-ltv] [-r..]  [input_text_file] output_dvi_file


DESCRIPTION

       Dvispc is a utility to modify/edit TeX DVI file with the following fea-
       tures:

           Mode option -c (default):
               correct  an  input  DVI  to  be  page-independent  in  specials
       (default)

           Mode option -d:
               dry run to check if an input DVI is  page-independent  in  spe-
       cials

           Mode option -s:
               show all specials in the input DVI

           Mode option -a:
               translate DVI into a Text (like dv2dt in dtl)

           Mode option -x:
               translate Text into a DVI (like dt2dv in dtl)

       (1)  The  main feature of dvispc is the first one, to make a page-inde-
       pendent DVI file.

       A "pure" DVI file must be actually page-independent.  However in recent
       years,  DVI  files with lots of \special's (color, annotation etc.) are
       commonly used, and they are not always page-independent. In such  case,
       for  example,  dviselect  or  dvidvi fails to preserve \special's (e.g.
       page color might be lost).

       The program dvispc corrects such page-"dependent" DVI files to be page-
       independent,  which  can be safely processed by dviselect or dvidvi and
       then properly converted to other formats such as PostScript and PDF.

       (2) To know whether such a correction is needed or not, dvispc -d  will
       suffice.

       (3) The mode -s lists all specials found in the input DVI as-is, with a
       preceding number which denotes the page where it appears.  For example,

              [1]
              {color push  Black}
              {color pop}
              {color push rgb 1 0 0}
              {color pop}
              [2]
              {color push  Black}
              {color pop}

       This  feature is equivalent to a program dvispecials in TeX-Guy package
       <http://www-masu.ist.osaka-u.ac.jp/%7Ekakugawa/TeX-Guy/>  and  dvii  -s
       <https://ctan.org/pkg/dvii>.

       (4)  The mode -a and -x correspond to dv2dt and dt2dv in the dtl (= DVI
       Text Language) package respectively. By default dvispc -a  formats  the
       output  text  in  its own style, but DTL-compatible format is available
       with -t option. Also, dvispc -x can accept DTL-compatible text input.


SUPPORTED SPECIALS

       Currently dvispc supports the followings:

           dvips-compatible specials
               color push, color pop, background
           dvipdfm(x) specials
               pdf:bcolor, pdf:ecolor, pdf:bgcolor, pdf:bann, pdf:eann
           tpic specials:
               pn

       Other specials might be supported in the future if needed.


SEE ALSO

       dviselect(1), dvidvi(1), dvips(1), dvipdfmx(1)


AUTHOR

       The program dvispc is derived from the DVIOUT  package  (DVI  previewer
       for  Windows)  by  Toshio OSHIMA ("SHIMA"), Yoshiki OTOBE, and Kazunori
       ASAYAMA.  Current version is maintained  by  Japanese  TeX  Development
       Community <https://texjp.org>.
       For  more  information,  please refer to dvispc-en.txt (in English) and
       dvispc-ja.txt    (in    Japanese)    on    our    GitHub    repository,
       <https://github.com/texjporg/tex-jp-build>  (under  source/texk/dviout-
       util directory).



                                                                     dvispc(1)

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