[XeTeX] Support request for /Rotate in pdf

[Zdenek Wagner]

Hi,

the difference is that pdftex does everything in one step, xetex prepares a
\special for xdvipdfmx. In order to implement /Rotate you have to read the
page directory. I do not remember the whole PDF reference but I think that
it is possible to have /Rotate for the whole document and /Rotate for
separate pages, both can be used together. When including the file, /Rotate
cannot be used, it is necessary to modify CTM.

There are official guidelines how to insert EPS, I do not know whether such
guidelines exist for inclusion of PDF. If so, the guidelines should be
followed.


Zdeněk Wagner
http://ttsm.icpf.cas.cz/team/wagner.shtml
http://icebearsoft.euweb.cz

2015-11-10 16:09 GMT+01:00 Hironobu Yamashita <h.y.acetaminophen at gmail.com>:

> Hi Zdenek,
>
> Many thanks to your clear explanation.
>
> > ... And now there is a question: the author of a PDF
> > document intended a physical orientation which
> > differs from the orientation intended for a screen
> > preview. If such a PDF is included into another PDF,
> > which one should be used, the physical one or the
> > one intended for screen preview?
>
> In my opinion, pdf with /Rotate should be rotated:
> that means the orientation intended for screen
> preview should be used. It seems pdfTeX is the
> effective 'standard', and it intends to rotate such pdf,
> and xdvipdfmx says "not supported yet" (it seems
> the author of xdvipdfmx would like to rotate in the
> future).
>
> > When making a PDF intended for inclusion I always
> > prepare it in such a way that its natural orientation
> > is the same as the physical orientation, I do not use
> > /Rotate.
>
> That may be true (I also know "pre-treatment" of pdf
> I've mentioned before works well), but *normal* users
> who are not familiar with pdf specification would be
> confused:
>   I carefully rotated pdf before inclusion, but XeTeX
>   does not understand. Why?
> Related questions have appeared in StackExchange
> several times as I mentioned, so it seems natural that
> normal users cannot understand the reason why
> XeTeX includes some pdf figures in different orientation
> from what viewers show.
>
> Above is my personal opinion as a normal user.
> I'd like to hear some other opinions.
> Has anyone ever had same kind of questions?
>
> Thanks,
> Hironobu
>
>
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