[16:18:29] <rodolfojcj> I'm wondering how to keep the best possible quality when converting from JPEG to RGBA
[16:19:02] <rodolfojcj> for example, the source file at https://github.com/abarto/django-watermark-images/blob/master/django_watermark_images/items/processors.py
[16:19:32] <rodolfojcj> has this code at line # 15: rgba_image = image.convert('RGBA')
[16:20:11] <rodolfojcj> I suspect that convert operation is the cause of quality lost, when the alpha_composite method is later called
[16:20:49] <rodolfojcj> do you have an idea about how to keep the best possible quality of the resulting image? Big image files are not a problem at this moment