Hello the campfire: As some of you may know, I have over the past years used film, from 35mm to 4x5, and know next to nothing about digital photography. My question: Hypothetically how would one add to or subtract from a digital photograph- such as adding a person to the picture or using a cloning program to take an unwanted object out? Can this be done both in RAW and JPeg? Is there a way to tell if a photograph has been "photoshopped" to use the popular vernacular? I know these are basic questions, but I am not even a novice when it comes to digital photography, and have not been successful in finding out this information on my own.