Tag Image File (or Tag Image File Format) is one of several file types for storing photographic images.

TIF files are loss-less, meaning that image quality is preserved during editing and multiple resaves.

TIF images can be saved with no data compression, or with a compression called LZW to reduce file data size on your computer.

Other common photo formats include JPG, PSD, and GIF. Less common formats include RAW, BMP, and PCT.