PSD- A PSD file is a Photoshop document file. It is used when saving work in photoshop.PSB- Like a PSD file but larger .GIF- A repeated video format with no sound. DCM- Used to distribute medical images EPS- Used for Vector images in Photoshop IFF/TDI- Interchange file format JPEG- Used in digital cameras, and is also a picture JPEG 2000- used for rasterized images PCX- an image format that is rarely used PDF- a portable document file.RAW- the image seen by a camera’s sensor Pixar- raster image format PNG- Portable Network Graphics used for raster images PBM- portable pix map format used to easily switch files .SCT- images in gray scale TGA- raster graphics file TIF- Used for high quality graphics