A short script to rotate pdf files.
Uses python with the argparse and pyPdf modules.

Most pdf viewers allow to rotate pdf files, but only until you close the file.
This script writes a new pdf file from an existing one, applying a rotation to every page of the original.

Usage :

python rotatePdf.py [-h] [-angle ANGLE] [-direction DIRECTION] [-pages PAGES] input output

positional arguments:
 input      Input pdf file
 output   Output pdf file

optional arguments:
 -h, --help          show this help message and exit
 -angle ANGLE        Rotation angle in degrees. Default is 90.
 -direction DIRECTION   One of clockwise or counterclockwise. Default is counterclockwise.
 -pages          Python list (with enclosing [] and , separated) of page numbers, starting from 1. Default is all.  Example: [1, 7, 8, 13]