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From: Helge Blischke <h.blischke@acm.org>
Newsgroups: comp.lang.postscript
Subject: Re: inserting duplex code?
Followup-To: comp.lang.postscript
Date: Fri, 02 Dec 2011 15:56:30 +0100
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jhgrredbjhj wrote:

> gswin32c -sDEVICE=ps2write -dNOPAUSE -dBATCH -sOutputFile=test.ps -c
> "<< /Duplex true /Tumble false >> setpagedevice" -f file1.ps file2.ps
> 
> 
> The duplex code never makes it through to the final ps.  Is there any
> way for ghostscript to get this in without taking another step of
> editing the file?

I guess not. Ghostscript's ps2write device shares a lot of code with the 
pdfwrite device and does not support (as far as I can see from both the 
documentation and the code) pagedevice keys for controlling specific device 
functions, only those which have an effect on the rendering itself.

Helge