[gs-devel] rotating pages

[Klaus Darilion]

Hi!

First I am not sure if this is the correct mailing list - but as there 
is no gs-user I will try gs-devel. (if there is a better mailing list 
please advice)

Hylafax (a fax server software) uses ghostscript to convert ps/pdf into 
tiffg3. I (and many others) have the problem, that if the pdf contains 
pages with landscape (either "page size x>y" or "page size x<y with 
/Rotation 90"), the tiff also contains pages in landscape format. The 
problem is, that fax only supports portrait (landscape can be shrunk to 
avoid clipping).

So what we need would be an option for ghostscript to rotate all pages 
to portrait - regardless of the original orientation of /Rotation values.

Thus, is this possible? Is there such an option?

Further, I found some examples using -dAutoRotate= but I could not a 
manual which describes the meaning of these token and the possible 
values. Where can I find it?

thanks
klaus