postreverse(1)
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
was not.
Diagnostics
An exit status of 0 is returned if
file
was successfully processed.
References
download(1),
dpost(1),
postdaisy(1),
postdmd(1),
postio(1),
postmd(1),
postprint(1),
posttek(1)
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.
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
To produce a minimally conforming file from output
generated by dpost without reversing the pages:
dpost file | postreverse -r
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004