if quality == 1:
    args_str = (
        """--encoding utf-8 --disable-smart-shrinking --no-pdf-compression --page-size A4 --zoom 1 -q -T 15.24mm -L 25.4mm -B 20.32mm  -R 33.02mm"""
        )
elif quality == 2:
    args_str = (
        """--encoding utf-8 --disable-smart-shrinking --page-size A4 --zoom 1 -q -T 15.24mm -L 25.4mm -B 20.32mm  -R 33.02mm"""
        )
How to generate pdf documents page-by-page in background tasks on App Engine