Adobe Photoshop bitmap
An essential format for when you want to save bitmap images within a project file for Photoshop. Storing it this way doesn’t use compression, and much of the file’s structure remains preserved. This includes layer hierarchy and masks, colour spaces & two-colour settings, and everything else that facilitates minute bitmap photo adjustment.
Joint Photographic Experts Group
JPG is a popular extension to save web graphics or photos. it uses compression, which makes transferring and downloading files easier. It’s based on a colour palette made up of 24 bits. Care needs to be taken when compressing since the image quality degrades more heavily during decompression the stronger the compression effect.