How does the JPEG transformation work?
A. This is a configurable function set in the application policies. The goal of the JPEG quality and smoothing values is to reduce the amount of data while maintaining a usable image. The default settings (Quality=25, Smoothing=80) are aggressive settings that may cause some blurring of the image but give a dramatic savings on the size of the jpeg images. There is a tradeoff between quality image compressions while still yielding some savings of image sizes. The optimal setting is application dependent.