I tested your idea of using a plainer backround, and you are correct. A plain white backround resulted in a whopping 40% smaller file size (starting at the JPG compression stage within my camera) than the textured green backround I have been using, yet retaining about the SAME level of picture quality in the subject area when viewed onscreen.
You indicated that this is possible because, compared to the "green" picture, relatively more compression was taking place in the plain white backround area, leaving the subject area less compressed. Makes sense. This 40% file size advantage, and equal quality, held throughout my further downsizing, allowing for smaller file sizes to upload. (It also allows for a little more latitude to use a little larger file size anytime you want better quality, or a larger picture). One more trick...good to know.
Thanks for helping to clarify an often confusing subject. Yes, Auctiva is a gem--great work!
