This is the preferred application for supplying high resolution raster images. All submitted Photoshop files should be in CMYK mode and sized to 100% (full scale) at 100-150 ppi (pixels per inch), or half -scale at 200-300 ppi. The artwork should be flattened and saved as a tiff file with LZW compression (this option appears in the tiff options window after you click the save button in the save window). Flattening file will rasterize any text or vector elements, so that should be the final step before saving the print-ready artwork. Please include the file extension in the name. When preparing images in Photoshop, please keep in mind that increasing an image’s resolution will not improve image quality and enlarging an image can result in pixilation. The less an image is interpolated, the better. When increasing an image’s resolution it is better to raise it to 100 ppi instead of 150. An image resampled from 50 ppi will not look any better at 150 ppi than it will at 100 ppi. The 150 ppi standard should only be used when decreasing resolution. Scanned images can become grainy when enlarged. Images previously saved as a jpeg may contain artifacts that will magnify when the image is enlarged.