JFTR - the wishlist report that gave me the first clue to compare 'Optimized' vs 'Preserved' transform options: bug #371297 “Feature request: Do not optimize transforms on Image objects”
JFTR - the wishlist report that gave me the first clue to compare 'Optimized' vs 'Preserved' transform options: bug #371297 “Feature request: Do not optimize transforms on Image objects”