Say I do some adjustments to exposure, clarity, presets, etc in the Library Module of Lightroom (3), if i then close Lightroom will these edits be automatically saved? That is to say if i reopen LR, will the 'adjusted' Jpeg still be there or will the untouched jpeg appear? I know how to 'export' edited Jpegs to another folder but just wondering what happens if i do nothing after editing then closing Lightroom. SOrry for newbie question - i did a bunch of edits and now wondering if i should close LR! (Btw can they be saved by backing up the catalog?)