Adobe 65023809 Printing Guide - Page 73

CMYK Setup dialog box. Transfer functions are useful, however, when compensating for a poorly calibrated output device. • Interpolation: Reduces the jagged appearance of a low-resolution image by automatically upsampling the output stream while printing. However, resampling may reduce the sharpness of the image quality. Some PostScript Level 2 (or higher) printers have interpolation capability. If your printer doesn't, this option has no effect. • Include Vector Data: Retains vector edges for text and other vector content when printing to a PostScript device. • Send 16-bit Data: Send maximum image information for high quality output if you are using Macintosh System 10.5 and later and your printer supports 16-bit images. Color management When you choose the Color Management option from the pop-up menu on the right side of the Print dialog box, you're presented with options for color management during output. Print Dialog Box- Color Management Options With the pop-up menu set to Color Management, choose the appropriate settings for your workflow. Hover over any option to view additional information at the bottom of the dialog. Options below the preview thumbnail allow you to match print colors on screen, highlight out-of-gamut warnings, and simulate paper white. Print section In the Print section, choose between the Document and Proof radio buttons. Choose Document to print the image according to the current color settings, taking into consideration the behavior of the target printer. Choose Proof to modify the output to match the proofing environment you specify. Use the Proof option if you wish the output to emulate the appearance of another device, such as using your desktop printer to mimic the final appearance on press. There are substantial enhancements to the print experience in Photoshop CS4 and Photoshop CS4 Extended, including support for printing of large (>30,000 pixels), user interface improvements, rulers in the print preview, gamut warnings, and great support for scripting. Options section The Options section governs color handling. The available choices depend on what you select from the Color Handling pop-up menu: • Printer Manages Colors: Photoshop sends the image data "as is," and the target device uses its built-in default color rendering. You can choose an option from the Rendering Intent pop-up menu, but most non-PostScript printers use Perceptual intent and ignore any other choice you might make here. If fleshtones have a greenish cast when printed, this may be a sign that color management in the printer is turned off. Note that, on Windows, using Printer Manages Colors will compress the gamut of images to sRGB color space when printing, which may produce less-vivid colors when printing to a wide-gamut device. • Photoshop Manages Colors: When this option is selected, you can choose a target printer profile and a rendering intent. The ideal target profile is a custom profile built for your device, but if you don't have a custom profile, choose the canned profile that matches your device and media. (These profiles are often installed when the printer driver is installed, but you may have to obtain them from the vendor.) It's very important to avoid "double color management" when using this option; make sure that you turn off any color compensation at the printer (address this in the print driver dialog Adobe Creative Suite 4 Printing Guide 71