In shooting JPEGs and using Photobucket as a hosting site, I've found that their fairly recent editor ( Aviary ) is better than anything I've tried so far on JPEGs. And after using Photobucket's editor and saving the edited images back down to my PC, I sometimes upload / submit a batch of images to Shutterfly for 8x10 enlargements when they run their periodic 40% sales. But then I began noticing something odd during the past few months. During the ordering process at Shutterfly, I'd occasionally get a warning message to the effect that such-and-such enlargement may have some pixelation due to low resolution and it's better suited at 5x7, etc. To make a long story short, it seems the Aviary editor at Photobucket saves the images at some astoundingly incredible reduced size...and here's a typical example from a test I just ran: An image size SOOC was 7,712 KB. Uploaded the 7,712 KB image to Photobucket. Opened it Photobucket's editor (Aviary). Then clicked save without doing anything to the image at all. The Photobucket saved image file size was then only 388 KB. Is my assumption correct...that this incredible amount of size reduction is what's causing the "low resolution" message at Shutterfly ?