POSTREVERSE(1)

NAME
postreverse - reverse the page order in a PostScript file

SYNOPSIS
postreverse [ options []] [ file []]

DESCRIPTION
postreverse reverses the page order in files that conform to Adobe's Version 1.0 or Version 2.0 PostScript 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]
Do not reverse the pages in
    file.

    [-T dir]
Use dir as the temporary file directory when reading from the standard input. By default dir is set to /tmp(.)

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

Since global definitions are pulled out of individual pages and put in the prologue, the output file can be minimally conforming, even if the input file was not.

EXAMPLES
Select pages 1 to 100 from file and reverse the pages:
    postreverse -o1-100 file
Print four logical pages on each physical page and reverse all the pages:
    postprint -n4 file | postreverse
Produce a minimally conforming file from output generated by dpost without reversing the pages:
    dpost file | postreverse -r

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

BUGS
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.

SEE ALSO
dpost(1), postdaisy(1), postdmd(1), postio(1), postmd(1), postprint(1), posttek(1), psencoding(1)