The Gray image has more than 1 channel. Only the first channel will be saved in the compressed image. The CMYK image has more than 4 channels. Only the first 4 channels will be saved in the compressed image. The RGB image has more than 3 channels. Only the first 3 channels will be saved in the compressed image. This Plug-in must be run from Adobe Photoshop™ This file was not created with Adobe's JPEG module. JPEG failed to compress the file. Try again with different options. JPEG could not decompress the file. The file may be bad.