Hi, please excuse me for my ugly english :p

I've created this simple model class, with a Preprocessor to reduce my photos'quality (the photos'extension is .JPG):

from django.db import models
from imagekit.models import ImageModel
from imagekit.specs import ImageSpec
from imagekit import processors

class Preprocessor(ImageSpec):
    quality = 50
    processors = [processors.Format]

class Picture(ImageModel):
    image = models.ImageField(upload_to='pictures')

    class IKOptions:
        preprocessor_spec = Preprocessor

The problem : pictures'quality are not reduced. :( Any idea to fix it ?

Thank you very much ;)