postreverse(1)                                        postreverse(1)


       NAME
             postreverse - reverse the page order in a PostScript file

       SYNOPSIS
             /usr/lib/lp/postscript/postreverse [options] [file]

       DESCRIPTION
             The postreverse filter reverses the page order in files that
             conform to Adobe's Version 1.0 or Version 2.0 file structuring
             conventions, and writes the results on the standard output.
             Only one input file is allowed and if no file is specified,
             the standard input is read.  The following options are
             understood:

             -o list   Select pages whose numbers are given in the comma-
                       separated list.  The list contains single numbers N
                       and ranges N1 - N2.  A missing N1 means the lowest
                       numbered page, a missing N2 means the highest.

             -r        Don't reverse the pages in file.

             The postreverse filter can handle a limited class of files
             that violate page independence, provided all global
             definitions are bracketed by %%BeginGlobal and %%EndGlobal
             comments.  In addition, files that mark the end of each page
             with %%EndPage: label ordinal comments will also reverse
             properly, provided the prologue and trailer sections can be
             located.  If postreverse fails to find an %%EndProlog or
             %%EndSetup comment, the entire file is copied, unmodified, to
             the standard output.

             Because global definitions are extracted from individual pages
             and put in the prologue, the output file can be minimally
             conforming, even if the input file wasn't.

       EXAMPLES
             To select pages 1 to 100 from file and reverse the pages:

                   postreverse -o1-100 file

             To print four logical pages on each physical page and reverse
             all the pages:

                   postprint -n4 file | postreverse




                           Copyright 1994 Novell, Inc.               Page 1

      postreverse(1)                                        postreverse(1)


            To produce a minimally conforming file from output generated
            by dpost without reversing the pages:

                  dpost file | postreverse -r

      DIAGNOSTICS
            An exit status of 0 is returned if file was successfully
            processed.

      NOTICES
            No attempt has been made to deal with redefinitions of global
            variables or procedures.  If standard input is used, the input
            file will be read three times before being reversed.

      REFERENCES
            download(1), dpost(1), postdaisy(1), postdmd(1), postio(1),
            postmd(1), postprint(1), posttek(1)































                          Copyright 1994 Novell, Inc.               Page 2