Epson professional proofing papers are perfect for color-critical, accurate proofing. Optimized for use with Epson ink, they deliver superior color accuracy and stability for general proofing, imposition and contract proofing. To ensure color accuracy, Epson proofing papers feature base colors that approximate those of the stock used in the actual printing process. When used with Epson ink, they offer a wider color gamut, so you can accurately reproduce more colors.