Regarding image compression, have you considered using jpegrescan on top of mogrify resizing? In my experience, it can shave off a few percent losslessly. http

Regarding image compression, have you considered using jpegrescan on top of mogrify resizing? In my experience, it can shave off a few percent losslessly. https://github.com/kud/jpegrescan https://github.com/kud/jpegrescan