Further support on www.tinaja.com  

(The following is believed correct. Please report any errors or differing experiences.)

 The Adobe Acrobat Distiller seems to have an "intelligent orientation" feature in which
it tries to guess which end of the document being distilled should end up at the top of the
screen. The apparent goal is to minimize any "upside down" screen presentations.

While this is good for most people most of the time, this "intelligent orientator" can cause
serious big time grief for such aps as duplex printing brochure covers or two-sided
foldovers in general. This can also cause certain printed pages to end up in the wrong
tray orientation. It certainly is a difference between how Distiller behaves and how a
classic PostScript printer or typesetter would respond to the same PostScript code.

Apparently, Distiller takes a "popularity poll" over the main "normal" text strings to decide
which end is up. Curiously, the popularity poll apparently only involves "normal" sized text
strings. For instance, a 0.3 scale might image one way and an 0.2 scale the other.

There seem to be five possible workarounds:

(1) Use Exchange to post edit the rotation to the desired viewing. Note that any
      existing notes will stay right side up and self positioned, apparently swapping their
      upper and lower right and left parameters.

(2) Use your host program to Preprint invisible text lines in the desired orientation
     early in the document. Invisibility can be gained by printing in white or in areas that
     will be graphically overwritten. Note that the number of "correct" invisible text lines
     apparently must exceed the number of "wrong" or upside down text lines.

But best of all...

(3) Insert the following near the beginning of your PostScript code...

/currentdistillerparams where {pop}                          % keep printer happy
{userdict /currentdistillerparams {1 dict} put} ifelse
/setdistillerparams where {pop}
{userdict /setdistillerparams {pop} put} ifelse

<</AutoRotatePages /None >> setdistillerparams      % turn off rotation

     More details on this method appear in Adobe Technical Note #5151, usually
     found by pulling down the Distiller Help menu option.

     However; there is an error in this technical note! The Boolean true or false is not
     acceptable. Valid entries are...

/All                  - for all portrait pages
/None             - all portrait or all landscape, depending on first page
/PageByPage - each page automatic on predominate text orientation

(4) If the Display PostScript commands of %%ViewingOrientation
     %%PageOrientation, or %%Orientation are placed in the header, they
     override and defeat automatic page rotation.

(5) Supposedly << /PageSize [width height] >> setpagedevice will also override
      the automatic Distiller orientation.

Example of this problem and a solution appears as http://www.tinaja.com/glib/syncat01.pdf
   

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