That is not quite true, most of the images have not been worked on and have just been loaded on straight from the camera. I teach people to use computers so I am well aware of the implications of opening in packages and just saving as is. If you open a 300dpi image in photoshop and save (without making any changes) it is still a 300dpi image. The issue is that previously saved files at 300dpi are now 72dpi.