The Advanced Viewer mode renders Group 6 and Group 7 TIFFs, while the Basic Viewer mode supports Group 7 but not Group 6 TIFFs. Group 7 TIFFs must conform to the TIFF standard for JPEG compression. Color images should use YCbCr for photometric interpretation or the image will be treated as a grayscale image. YCbCr is the standard color for JPEG images.