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On 03/15/2011 04:22 AM, jdaw1 wrote:
> These questions are about the avoidance of duplex printing.
>
> To give some context, imagine that there are 14 pages in a document.
> The first four must be non-duplex. The next five are to be given to
> one person, and may optionally be or not be duplex. The next five are
> to be given to another person. So these five must be separated from
> the previous five, but within that five, may optionally be or not be
> duplex. This PDF will be made from my PostScript, but somebody else,
> who should be assumed non-expert, will be doing the printing

I don't believe you can embed a duplex command inside a PDF document. As 
far as I know, that can only be set when the document is sent to a 
printer and can't be changed within a print job. I would break the 
document into separate pieces for the duplex and non-duplex parts.

Jeff Coffield
www.digitalsynergyinc.com

On Mar 15, 6:22 am, jdaw1 <jdawise...@gmail.com> wrote:
> These questions are about the avoidance of duplex printing.
>
> To give some context, imagine that there are 14 pages in a document.
> The first four must be non-duplex. The next five are to be given to
> one person, and may optionally be or not be duplex. The next five are
> to be given to another person. So these five must be separated from
> the previous five, but within that five, may optionally be or not be
> duplex. This PDF will be made from my PostScript, but somebody else,
> who should be assumed non-expert, will be doing the printing.
>
> The PostScript Reference manual describes <<  ...  /Duplex false  >>
> setpagedevice
>
> 1. Can a PDF have an equivalent setting, and if distilled with Adobe
> Distiller, does it correctly inherit it from the PostScript?
>
> 2. What does /Duplex false mean?
>
> 2a. Does it require only that this page must be recto? In which case,
> if the following page does not specify /Duplex false, the following
> page can be the verso to this page’s non-duplex recto? In which case
> the first of each person’s five pages should be /Duplex false, and the
> subsequent unspecified.
>
> 2b. Or does /Duplex false require that this page must be recto, and
> also require that the verso must be blank. If so, how does one start a
> new ‘duplex group’?
>
> Or perhaps these things are not well specified, or not reliably
> implemented to specification.
>
> Thank you.

One option would be to set Duplex for the entire document,
and explicitly emit blank pages where necessary.

luser- -droog wrote:

> On Mar 15, 6:22 am, jdaw1 <jdawise...@gmail.com> wrote:
>> These questions are about the avoidance of duplex printing.
>>
>> To give some context, imagine that there are 14 pages in a document.
>> The first four must be non-duplex. The next five are to be given to
>> one person, and may optionally be or not be duplex. The next five are
>> to be given to another person. So these five must be separated from
>> the previous five, but within that five, may optionally be or not be
>> duplex. This PDF will be made from my PostScript, but somebody else,
>> who should be assumed non-expert, will be doing the printing.
>>
>> The PostScript Reference manual describes <<  ...  /Duplex false  >>
>> setpagedevice
>>
>> 1. Can a PDF have an equivalent setting, and if distilled with Adobe
>> Distiller, does it correctly inherit it from the PostScript?
>>
>> 2. What does /Duplex false mean?
>>
>> 2a. Does it require only that this page must be recto? In which case,
>> if the following page does not specify /Duplex false, the following
>> page can be the verso to this page’s non-duplex recto? In which case
>> the first of each person’s five pages should be /Duplex false, and the
>> subsequent unspecified.
>>
>> 2b. Or does /Duplex false require that this page must be recto, and
>> also require that the verso must be blank. If so, how does one start a
>> new ‘duplex group’?
>>
>> Or perhaps these things are not well specified, or not reliably
>> implemented to specification.
>>
>> Thank you.
> 
> One option would be to set Duplex for the entire document,
> and explicitly emit blank pages where necessary.

... or enclose the simplex pages by
save <</Duplex false>>setpagedevice
and
restore
provided the printer supports handling of page sets different from the whole 
job (most printers do).

Helge