Hi,

I don't know if it helps but I use "the pdf toolkit" to rotate a pdf. It is free, fast and don't need to do anything then typing a command line ... (it is windows, mac & linux compatible)

http://www.pdflabs.com/docs/install-pdftk/

It is portable and need a command line as follows :

pdftk inputname.pdf cat 1-endW output outputname.pdf

Sincerely Yours,

Lobo