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This is an uncompressed format for storing bitmaps in grayscale or in the RGB or CMYK color systems. It can be created in Adobe Photoshop or on Scitex workstations using scanners for the high-quality processing and preparation of high quality images for printing.

This format is used to compress TIFF images when sending them via fax machines. This format helps reduce the data transmission time. Group 3 eliminates redundant data during compression in order to reduce file size. The standard 10:1 compression ratio may be increased to the user's preferences, but it can lead to a significant loss of image quality.