I have in the past used Ghostscript to rotate PDFs however this time I used a utility call pdftk
On Ubuntu 7.10 it is easily installed using the command:
sudo apt-get install pdftk
To rotate a pdf 90 degrees to the right (the entire document in this example) you run the following command
pdftk input.pdf cat 1-endE output output.pdf
As far as I can tell the above means take input.pdf and create a new pdf (cat) and using the 1st page till the end (1-end) of the document rotate it to the East 90° (E) and the resulting new document should be output to the file name output.pdf
If you run man pdftk at a command prompt you will see it's options and some examples which will help. It has a heap of features
To merge multiple pdf documents into one file:
pdftk site_plan_existing1.pdf site_plan_proposed1.pdf elevationsE.pdf joist_bearer_post_detail.pdf output RearDeckReno.pdf
This is a real world example of a heap of PDF's created from printing from QCAD to the Ubuntu default PDF printer. Then using pdftk to rotate them so they are oriented correctly then use pdftk to merge them into one document
Rotate 90 Degress to Right (West)
pdftk input.pdf cat -W output myOutput.pdf
Thanks. I find these examples to be very helpful and I appreciate you posting them here.