imposition with some rotated pages

[Pablo Rodriguez <oinos@gmx.es>]

Dear list,

I have a PDF document in A4 paper size with some rotated pages.

I would like to make a booklet of it:

    \setuppapersize [A5][A4, landscape]
    \setuparranging [2UP]
    \setuplayout
      [backspace=0pt,
        topspace=0pt,
           width=middle,
          height=middle,
        location=middle,
          header=0pt,
          footer=0pt]
    \setupinteractionscreen[option={landscape, paper}, copies=1]
    \starttext
    \filterpages[report.pdf][1:25][width=0pt]
    \filterpages[report.pdf][27:30][width=0pt]%they are rotated
    \filterpages[report.pdf][31:100][width=0pt]
    \stoptext

The rotated pages in the source PDF document are a problem here.

The wiki contains the info that \filterpages may be rotated with
[orientation=90]. But this seems to be old, since it doesn’t work.

If I add
\rotate[rotation=90]{\filterpages[report.pdf][27:30][width=0pt]},
automatic scaling doesn’t work. And all pages will be considered as a
single image.

Is there any way to have rotation for some pages in the source document
to get the right imposition?

I’m afraid rotation comes from the source PDF document in this case.

Many thanks for your help,

Pablo
-- 
http://www.ousia.tk
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