Trimming a photo is a process of removing unwanted elements from the edges of an image. It involves cutting away parts of the photo that are not necessary or desired, such as excess background or empty space. This can be done manually with scissors or digitally with software. Cropping is a related term which refers to the act of selecting a portion of an image and discarding the rest. It is often used to focus on a particular subject or to remove distracting elements from the frame.