Adobe Photoshop CS3 - Manual (Page 146)

PHOTOSHOP CS3
User Guide
139
Color-managing documents when printing
Printing with color management
Color management options for printing let you specify how you want Adobe applications to handle the outgoing
image data so the printer will print colors consistent with what you see on your monitor. Your options for printing
color-managed documents depend on the Adobe application you use, as well as the output device you select. In
general, you have the following choices for handling colors during printing:
• Let the printer determine colors.
• Let the application determine colors.
• (Photoshop and InDesign) Do not use color management. In this workflow, no color conversion occurs. You may
also need to turn off color management in your printer driver. This method is useful primarily for printing test
targets or generating custom profiles.
Letting the printer determine colors when printing
In this workflow, the application does no color conversion, but sends all necessary conversion information to the
output device. This method is especially convenient when printing to inkjet photo printers, because each combi-
nation of paper type, printing resolution, and additional printing parameters (such as high-speed printing) requires
a different profile. Most new inkjet photo printers come with fairly accurate profiles built into the driver, so letting
the printer select the right profile saves time and alleviates mistakes. This method is also recommended if you are
not familiar with color management.
If you choose this method, it is very important that you set up printing options and turn on color management in
your printer driver. Search Help for additional instructions.
If you select a PostScript printer, you can take advantage of PostScript color management. PostScript color
management makes it possible to perform color composite output or color separations at the raster image processor
(RIP)—a process called in-RIP separations—so that a program need only specify parameters for separation and let
the device calculate the final color values. PostScript color-managed output workflows require an output device that
supports PostScript color management using PostScript Level 2 version 2017 or later, or PostScript Lanuage Level 3.
Letting the application determine colors when printing
In this workflow, the application does all the color conversion, generating color data specific to one output device.
The application uses the assigned color profiles to convert colors to the output device’s gamut, and sends the resulting
values to the output device. The accuracy of this method depends on the accuracy of the printer profile you select.
Use this workflow when you have custom ICC profiles for each specific printer, ink, and paper combination.
If you choose this option, it is very important that you disable color management in your printer driver. Letting the
application and the printer driver simultaneously manage colors during printing results in unpredictable color.
Search Help for additional instructions.
Obtaining custom profiles for desktop printers
If the output profiles that come with your printer don’t produce satisfactory results, you obtain custom profiles in the
following ways:
• Purchase a profile for your type of printer and paper. This is usually the easiest and least expensive method.