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Contents
Introduction
Basics of color management
Controlling printed color xii
Maintaining printer consistency xiii
Printer gamut xiv
Color conversion xv
Chapter 1: Simple and Advanced Workflows
Workflow concepts
Short-run printing versus color proofing1-1
RGB, CMYK, and spot colors1-2
Desktop versus ColorWise color management1-2
Simple workflows
Select your colors wisely1-4
Select a short workflow1-4
Advanced workflows
Short-run printing examples1-8
Color proofing examples1-14
Chapter 2: Working with Color in Applications
xi
1-1
1-3
1-8
Working with color
Color reference pages2-2
Office applications
Choosing colors in office applications 2-4
PostScript applications
Choosing colors in PostScript applications2-6
Default output profile2-8
CMYK simulation2-8
2-1
2-3
2-5
viii Contents
Chapter 3: Office Applications
Working with office applications
Defining colors3-1
Working with imported files3-1
Selecting options when printing3-2
Output profiles3-2
Chapter 4: Adobe Photoshop
Creating a monitor profile
Specifying color settings
Photoshop 6.x color settings4-3
Photoshop 5.x color settings4-5
Saving files
Saving files from Photoshop 6.x or 5.x4-9
Advanced tips for using PostScript color management4-12
Defining colors
Selecting options when printing
Advanced tips for printing with Photoshop PostScript color management4-15
Chapter 5: Page Layout Applications
3-1
4-1
4-2
4-9
4-13
4-13
Working with page layout applications
Defining colors5-1
Importing images5-2
CMYK simulation5-3
Adobe InDesign 1.5.2
InDesign color settings5-3
Importing images5-4
Selecting options when printing5-5
Adobe PageMaker 7.x and 6.5 for Mac OS and Windows
PageMaker color settings5-7
Windows version requirement5-8
Importing images5-8
5-1
5-3
5-7
ix Contents
Selecting options when printing5-9
Optional Color Management from PageMaker5-10
QuarkXPress 4.x for Mac OS and Windows
Importing images5-10
Selecting options when printing5-11
Optional Color Management from QuarkXPress5-12
QuarkXPress 3.32 for Mac OS and Windows
Windows version requirement5-13
Importing images5-13
Selecting options when printing5-13
Chapter 6: Illustration Applications
Working with illustration applications
Defining colors6-1
Importing images6-2
CMYK simulation6-3
Adobe Illustrator for Windows and Mac OS
Illustrator 9.x color settings6-3
Specifying print options6-4
Illustrator 8.x color settings6-6
Specifying print options6-7
Saving files for importing into other documents6-8
5-10
5-12
6-1
6-3
FreeHand 9.x and 8.x for Windows and Mac OS
FreeHand color settings6-9
Defining colors6-10
Importing images6-10
Saving files for importing into other documents6-12
Optional color management in FreeHand6-12
CorelDRAW for Windows and Mac OS
Defining colors6-13
Importing images6-13
Specifying print options6-14
Saving files for importing into other documents6-16
Optional color management in CorelDRAW6-16
6-9
6-13
x Contents
Appendix A: Desktop Color Primer
The properties of color
The physics of colorA-1
CIE color modelA-3
Hue, saturation, and brightnessA-4
Additive and subtractive color systemsA-5
Printing techniques
Halftone and continuous tone devicesA-9
Using color effectively
A few rules of thumbA-11
Color wheelA-11
Color and textA-13
Raster images and vector graphics
Optimizing files for processing and printing
Resolution of raster imagesA-16
ScalingA-18
A-1
A-9
A-10
A-14
A-16
Glossary
Bibliography
Index
xi Basics of color management
Introduction
This manual introduces the concepts and issues associated with printing to the
Color Server™. It outlines key workflow scenarios and provides application notes that
explain how to print to the Color Server from popular Microsoft Windows and
Apple Mac OS applications. This reference guide also provides basic background
information on color theory and color management.
The Glossary at the back of this manual defines terms and concepts—for example,
output profile
as “RGB data,” “color space,” “spot color,” “gamut,” and “source profile” are used
throughout this manual. If you are new to desktop color, or if any terms are unfamiliar,
check the Glossary.
OTE
The term “printer” is used throughout this manual to denote a supported
N
:
printer or copier. The term “toner” in this manual refers to either toner or ink.
—that appear throughout this manual. Color terms and concepts such
Basics of color management
The past several years have seen progress toward standardization in the field of digital
color management systems. Both the Windows and Mac OS operating systems now
support an industry standard format developed by the International Color
Consortium (ICC). This ICC format is implemented on Windows computers in
Image Color Matching (ICM) and on Mac OS computers in ColorSync. More and
more software developers are also incorporating color management systems into
high-end applications. The Color Server color management system,
supports this standard profile format.
ColorWise®,
A
color management system (CMS)
the source image (for example, the monitor or a scanner) and the color space of the
printer. The CMS uses a device-independent color space, such as CIELAB, as its
intermediate color space. To perform its translation, the CMS needs information about
the color space of the source image and the
provided in the form of profiles, often created by the makers of the computer monitor
or printer. The end product of a CMS conversion is a printed document or an image
file in the gamut of a particular printer.
is a “translator” between the color space of
gamut
of the printer. This information is
xii Introduction
N
OTE
If color matching between your monitor and printed output is critical, calibrate
:
your monitor, as well as your Color Server. For most users, predictability of printed
color output is adequate and monitor
calibration
is not necessary. For information on
monitor calibration, see your Adobe Photoshop or Adobe Illustrator documentation.
The following section provides information on controlling and managing color output
in order to achieve predictable color results. It also discusses the basics of color
management.
Controlling printed color
When working with color materials, whether they are presentations, illustrations,
or complicated page designs, you make aesthetic decisions about the colors you use.
Once you have decided on your goal, you must make the best use of the capabilities of
your Color Server to realize your design in print. Your color printing system becomes
an ally in this creative process to the extent that results are
•If you designed a poster to print on the Color Server, you want the printed colors to
match the design specification.
predictable
.
• If you are printing presentations on the Color Server, you want to preserve the vivid
colors you see on your monitor.
• If you are working with color that will be printed on an offset press, you want the
Color Server output to match other
prepress proofs
or PANTONE color swatch
books.
The type of print job and the final output device—Color Server or offset press—
determine the workflow you should use to achieve the best results.
No matter what your goals are, two factors always impact color print output: printer
consistency and the range of colors the printer can print, known as its
gamut
. These
concepts are covered briefly in this chapter. Creating successful color documents and
presentations also requires an understanding of color management software as it is
implemented by the Color Server and on your desktop computer. Most of this chapter
is devoted to discussing the various elements of color management that contribute to
predictable color results.
xiii Basics of color management
Maintaining printer consistency
The factors described in the following sections affect printer consistency, as well
as color fidelity and overall output quality.
Paper stock and toner
The paper and toner used by your printer can affect printed color. For best results,
use the supplies recommended by the manufacturer of the printer.
Maintenance
Problems such as streaking and insufficient or excessive amounts of one or more toners
arise when a printer does not receive periodic maintenance or needs major repairs.
In addition to having it serviced regularly, monitor the condition of your printer by
making standard test prints at regular intervals. You can do this easily by printing the
Color Server Test Page. Save the prints and show them to the service technician
whenever output densities vary from the norm or other problems appear.
Calibration
Output from color printers is subject to changes in temperature and humidity, and is
prone to drift over time, with a resulting loss in color predictability. For this reason,
regular service visits alone do not guarantee consistent results from a printer. Where
color accuracy and consistency are crucial, regular calibration of the Color Server and
printer is necessary.
Calibration generates transfer curves that adjust for the difference between the actual
toner densities (measurements) of the print device and the response expected by the
output profile
association with output profiles to produce color output that accounts for the unique
toner characteristics of the printer.
For information on performing calibration of the Color Server, see the
. These transfer curves are stored on the Color Server and used in
Color Guide
.
Color transparency film
RGB monitor
xiv Introduction
Printer gamut
Different color reproduction techniques have different color capabilities, or
Color transparency films have comparatively large gamuts, as do color monitors.
The color gamut that can be produced using process inks or
CMYK
toners on paper is
smaller. This is why some colors that can be displayed on a color monitor, especially
bright saturated colors, cannot be reproduced exactly by your Color Server—nor, for
that matter, can they be reproduced on a press using
process colors
. Moreover,
different printers have different gamuts—some colors your printer can produce cannot
be reproduced on an offset press, and vice versa. The following figure illustrates this
concept of differing gamuts.
gamuts
.
Offset press (white)
Other print device
You must account for the gamut of your printer when designing on a color monitor.
When printed, colors that fall outside the printer gamut are “mapped” to printable
colors. This process, referred to as
gamut mapping
, takes place when color data is
converted or adjusted to meet the gamut requirements of a printer.
The Color Server is specially designed to perform gamut mapping at high speed with
high-quality results. It provides these color management features automatically, using
either built-in default settings or settings you select for a particular print job. For added
flexibility, you can also use the Color Server color management system in combination
with the color management systems on Windows and Mac OS computers.
xv Basics of color management
Color conversion
Before you can print a color document, the color data in it must be converted to the
gamut of the printer. Whether performed by the Color Server or a host-based CMS,
the process of converting color data for a printer is the same: the CMS interprets
image data according to a specified
data according to a specified
color management systems.
source profile
output profile
Color management system
, also called a destination profile by some
and adjusts both RGB and CMYK
RGB
Source
profile
Device-independent
color space
Input dataPrinted data or file
Output
profile
The source profile defines the RGB color space of the image’s source—characteristics
such as the
white point, gamma
, and type of
phosphors
used. The output profile
defines the gamut of an output device, such as a printer. The Color Server (or the
host-based CMS) uses a device-independent color space to translate between the
source color space
and the color space of the output device.
The Color Server allows you to specify default and override settings for the source
color space information and the output profile information (see the
Color Guide
).
When you use these settings, you do not need to use the features of other color
management systems. Your Color Server software includes
ICC profiles
for use with
other color management systems, if you choose to use them, although conflicts may
arise when the Color Server CMS is used in conjunction with a host CMS.
You can also use color management systems to adjust color data to the gamut of an
output device other than the one to which you are printing. This process of simulating
another output device is commonly used for proofing jobs that will print on an offset
press. The Color Server simulation feature is described in the
Color Guide
.
1-1 Workflow concepts
1
Chapter 1:
Simple and
Advanced
Workflows
This chapter discusses color management workflows used in short-run color printing,
as well as color proofing on the Color Server. It also gives examples of color
management in specific desktop applications and discusses the interaction between
those applications and
ColorWise
color management.
Workflow concepts
The term “
desktop application to final printed output. It is helpful to think of the following
factors when describing workflows:
•Short-run printing versus color proofing for eventual output on an offset press
•RGB, CMYK, and spot color systems
•Desktop color management within an application versus color management on the
Color Server, along with the notion that different versions of desktop applications
handle color management differently.
OTE
N
when considering the workflows in this chapter.
Short-run printing versus color proofing
Short-run color printing refers to those jobs for which the Color Server is the final
print device. Printing jobs to the Color Server in preparation for printing on an offset
press is referred to as color proofing. Both types of Color Server print jobs use RGB,
CMYK, and spot colors.
workflow
It is important to pay close attention to the version of a particular application
:
” is used to describe the path a job follows from its creation in a
•For short-run jobs, bright, saturated colors are often desirable. These are achieved by
using the full range of colors available, referred to as the full
more simply, device CMYK. For short-run printing examples, see “A dvanced
workflows” on page 1-8.
•Offset jobs proofed on the Color Server require the printed colors to match those
from another set of CMYK printing conditions. Colors that are specified for an
offset press require CMYK simulation that is optimized for proofing on the
printer. For color proofing examples that simulate the gamut of another digital
printer or press standard, see “Advanced workflows” on page 1-8.
gamut
of the printer or,
1-2 Simple and Advanced Workflows
1
RGB, CMYK, and spot colors
Colors can be defined in several different color models, the most common being
CMYK
, and the
conversion at the Color Server. These different color conversion workflows
are as follows:
•
RGB source profiles and color rendering dictionaries (CRDs) are used to map
RGB colors through a device-independent color space to a destination space, either
the full device gamut in a short-run printing workflow or CMYK simulation in a
color proofing workflow.
• CMYK colors are device-dependent. In a proofing scenario, colors specified in
prepress applications are adjusted so that the gamut of the printer simulates that
of the press. In a short-run printing workflow, specifying CMYK colors according
to the calibrated Color Server output eliminates the need for simulation
during printing.
• Spot colors, such as PANTONE, are special inks manufactured to run on an offset
printing press. Spot colors can be simulated using CMYK toners or process color
inks. Two basic workflows exist for printing spot colors to the Color Server:
spot color
matching system. Each model requires a different color
RGB
,
Spot Color Matching On uses color tables built in the Color Server to simulate the
spot color with its closest CMYK equivalent.
Spot Color Matching Off instructs the Color Server to simulate the spot color using
CMYK equivalents defined by the spot color manufacturer. These are the same
CMYK values used by applications that include spot color libraries. This CMYK
combination is then printed with the CMYK Simulation setting you choose, such as
SWOP or DIC.
Desktop versus ColorWise color management
A desktop color management system uses ICC profiles to convert colors from one
device gamut to another (see Appendix A). The color data is converted when it is
passed from one application to another or when the job is sent to the printer; thus, the
processing occurs on your computer, as opposed to the Color Server.
1-3 Simple workflows
1
Using ColorWise color management over desktop color management relieves your
computer from having to perform additional processing. Delaying color conversions
until the color data reaches the Color Server frees your computer so you can continue
working, and color conversions on the Color Server are, in most cases, much faster
than similar conversions on a host computer.
Managing most or all of your color on the Color Server can also eliminate the potential
for undesirable color management-related conflicts, such as iterative color conversions
and inconsistent color. The Color Server applies global corrections to specific groups of
RGB, CMYK, and spot colors to avoid such conflicts.
Finally, by sending RGB files instead of larger CMYK files from applications to the
Color Server, network traffic is minimized and jobs generally print faster.
ColorWise uses ICC profiles to convert colors to the device gamut or simulate other
devices, such as an offset printing press. ColorWise manages color conversions for all
users printing to the Color Server from Windows and Mac OS computers. It allows
users to follow a simple workflow with minimal intervention using robust default
settings, while giving advanced users the control and precision they need.
The Color Server can intelligently manage the printed appearance of RGB, CMYK,
and spot colors. You can let the Color Server manage color for most short-run color
printing jobs without adjusting any settings.
Simple workflows
Every time you print a document containing colors that were not chosen for your
specific device, those colors must be converted, which requires color management.
You can define or modify colors at any stage in the workflow. Since ColorWise is
compatible with most other color management systems, you can use the workflow
most familiar to you.
1-4 Simple and Advanced Workflows
1
Select your colors wisely
For the colors you see on your monitor to match those on your printed output, they
must go through color management, including precise calibration of your monitor
and Color Server. If you are not equipped or inclined to maintain accurate monitor
color management, you can opt for an easier approach. Determine which is more
important to you—printed colors or monitor-displayed colors.
If displayed colors are more important, trust your eyes and your monitor. Visually
select colors on your monitor, but be aware that colors will be optimized only for your
monitor. When the document is opened on other monitors, the colors may look
different. And even though printed colors may not match those on your monitor, they
will still print to the Color Server with good results.
If printed colors are your priority, choose colors from printed samples. By using sample
colors, you ensure your printed output remains consistent, regardless of how the colors
appear on different monitors. Print the palette of available colors from business
applications and select colors from the printed samples. Color reference files are
included on the User Software CD (see page 2-2). You can also print color charts from
the Control Panel and select colors by name or number from the printed samples.
Advanced applications allow you to define colors in the easier-to-control spot and
CMYK color spaces. For more advice on color selection, see Chapter 2.
NOTE: No matter which workflow most closely matches your own, calibrate your
Color Server regularly (see the Color Guide).
Select a short workflow
Every time colors are converted, performance and color accuracy are affected.
Therefore, a workflow with a minimum number of steps minimizes the risk of error.
Workflow 1 using ColorWise calibration—minimal workflow
A minimal color workflow requires that you calibrate the Color Server. Select from
printed colors, as described earlier, and set the CMYK Simulation option to None,
since simulation is not necessary when colors are already defined using CMYK values
optimized for your calibrated Color Server.
1-5 Simple workflows
r
r
1
NOTE: CMYK Simulation set to None is also useful when you want to prepare an
output profile of your calibrated Color Server or when you use less efficient color
management from the desktop (such as ColorSync or ICM).
In this workflow, colors are modified only at the calibration stage, as indicated by the
black box in the following diagram.
Workflow 1—Colors you define in an applicationColors output from the Color Serve
Application
CMS
File formatPrinter driver
While this workflow lends some control over the color quality produced by the
Color Server, consider additional ColorWise color management, as described in the
following section.
Workflow 2 using ColorWise color management—standard workflow
The Color Server is highly optimized for the specific printer it supports, and
ColorWise addresses many issues unique to your printer, including screens, individual
toner response, interactions among toners, natural smoothness of blends, and the
capability to render spot and custom colors. The Color Server distinguishes text and
graphics from image elements, so the black channel information is preserved while
parameters used for CMYK color separations are maintained.
Conventional color management systems typically address only color conversions, and
they occupy your computer processor. When you use ColorWise, jobs leave your
computer faster to be processed more quickly on the Color Server.
The recommended standard color workflow (indicated by the black boxes in the
following diagram) uses ColorWise calibration and color management.
ColorWise
CMS
ColorWise
calibration
Workflow 2—Colors you define in an applicationColors output from the Color Serve
Application
CMS
File formatPrinter driver
ColorWise
CMS
ColorWise
calibration
1-6 Simple and Advanced Workflows
1
The Color Server comes into play near the end of the color workflow. To ensure the
colors you selected reach the Color Server and ColorWise in a usable form, bypass any
color management from applications and printer drivers. Keep in mind, however, that
ColorWise fully supports color management from applications and printer drivers
(see “Advanced workflows” on page 1-8).
You must print with the CMYK Simulation print option set to match the CMYK
color space used in the application to select the colors. Any CMYK Simulation setting
(except Match Copy) applies calibration, so the response of the printer will appear to
be stable.
The recommended values for CMYK Simulation are SWOP in the U.S., Euroscale in
Europe, and DIC in Japan—choices that respect the color standard for each region.
If colors have been selected specifically for your calibrated Color Server, set CMYK
Simulation to None.
For a list and descriptions of ColorWise print options that affect CMYK, RGB, spot,
and other colors, see the Color Guide.
Workflow 3 bypassing ColorWise—not recommended
Bypassing ColorWise color management, while a possibility, is not a recommended
workflow. When you bypass ColorWise, you must choose colors using only CMYK
formulas designed specifically for your printer, and you must print with the CMYK
Simulation option set to Match Copy, if it is available for your Color Server. The
Color Server still prints pages using your PostScript files, and drives your printer and
its accessories, but it does not perform CMYK color transformation, nor does it
consider calibration data. Calibration is necessary for consistent output, since the color
response from your printer varies significantly depending on wear, heat, humidity,
and service.
1-7 Simple workflows
r
1
The following diagram indicates that no modifications are made to colors in
this workflow.
Workflow 3—Colors you define in an applicationColors output from the Color Serve
Application
CMS
File formatPrinter driver
Turn off color management in your application
Generally, when printing to the Color Server, it is best to disable color management
in the application to ensure the Color Server receives color data properly and prints
it accurately.
Save your files using color-safe settings
You can take the following additional steps to ensure color accuracy.
• When saving EPS files, do not include PostScript Color Management information.
This minimizes the risk of conflicting data and multiple color conversions.
PostScript Color Management causes your CMYK and RGB colors to be interpreted
by the Color Server as though they were supplied in the Lab color space and, as a
result, processed by CRDs, rather than your simulation settings.
•Include ICC color information in files. ColorWise does not conflict with this
information, and such data is useful for identifying the specific color space used by
your files.
•Do not include halftone and transfer functions.
•Turn off color management in the printer driver.
ColorWise
CMS
ColorWise
calibration
On Windows computers, if the printer driver offers Image Color Matching options,
select Printer Image Color Matching.
On Mac OS computers, set the printer driver to include no color management
commands at print time (see the Color Guide).
1-8 Simple and Advanced Workflows
1
Advanced workflows
The following sections present advanced color management workflow examples for
three short-run printing and three color proofing situations. Each workflow example
consists of a brief description, steps for creating and manipulating the files, a list of the
ColorWise settings used in the example, and a table that summarizes the workflow.
NOTE: These examples reference specific software applications that illustrate image
editing, illustration, page layout, and business/office applications—Adobe Photoshop,
Adobe Illustrator, QuarkXPress, and Microsoft PowerPoint, respectively.
Short-run printing examples
The following examples illustrate short-run printing on the Color Server.
Photoshop RGB workflow
This short-run workflow of printing an RGB image from Photoshop is one of the
simplest color workflows. In it, RGB data is sent from the application, through the
printer driver, to the Color Server. The RGB-to-CMYK conversion takes place on the
Color Server using a CRD rather than the application. Use the settings illustrated in
this workflow for printing photographs and artwork.
This document could be created as follows:
•Create an RGB image in Photoshop.
•Print the file directly to the Color Server.
For recommended print settings from Photoshop, see Chapter 4.
•Use ColorWise to convert the RGB image to device CMYK (the full gamut of
the printer).
1-9 Advanced workflows
1
The ColorWise settings used in this example are:
•RGB Source Profile set to EFIRGB or another RGB source definition
•Rendering Style set to Photographic
•RGB Separation set to Output
The following diagram indicates the steps for this particular workflow in black.
Photoshop RGB workflow
PhotoshopPrinter driver ColorWise
Read Embedded Profiles
Define RGB Source
Embed Source Profiles
Convert RGB to CMYK
Convert CMYK to CMYK
Select RGB Mode
Select CMYK Mode
Select Destination Profile
Save as TIFF
Save as EPS
Save as JPEG
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color Matching
PostScript Color Matching
Select RGB Source: None
Select Rendering Style (CRD)
Select RGB Separation: Output
Select RGB Separation: Simulation
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Device CMYK Sim.: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Custom Output Profile
print options
Define RGB Source
Select Output Profile
1-10 Simple and Advanced Workflows
1
Photoshop RGB with Illustrator and QuarkXPress CMYK and spot colors
This workflow involves short-run printing of a complex page layout with images
saved in Photoshop, illustrations created in Illustrator, and spot colors. A Photoshop
image is saved in an RGB color space using the EPS file format. Illustrator artwork
contains objects defined as CMYK and as spot colors selected from printed output,
and they are saved using the Illustrator EPS file format. After all the individual objects
are imported into QuarkXPress, additional design elements in QuarkXPress are
colored using CMYK process colors or spot colors. Use the settings illustrated in this
workflow for printing brochures, newsletters, and other layouts.
NOTE: When you place CMYK colors in a document, select them from printed output
(see page 1-4).
This document could be created as follows:
•Create an RGB image in Photoshop and save it as Photoshop EPS.
•Create a graphic in Illustrator using CMYK and spot colors and save as Illustrator
EPS.
•Use CMYK colors and a spot color in a QuarkXPress document.
•Import the Illustrator EPS into QuarkXPress and place the Photoshop EPS image.
•Print the QuarkXPress document to the Color Server.
•Use ColorWise to convert the RGB image to device CMYK, adjust the process
colors for short-run printing, and match the spot colors using the full device gamut.
1-11 Advanced workflows
1
The ColorWise settings used in this example are:
•RGB Source Profile set to EFIRGB or another RGB source definition
•Rendering Style set to Photographic
•RGB Separation set to Output
• CMYK Simulation set to None
•Spot Color Matching set to On
The following diagram indicates the steps for this particular workflow in black.
Photoshop RGB workflow with Illustrator, QuarkXPress CMYK, and spot colors
Convert RGB to CMYK
Convert spot to CMYK
Embed Source Profile
Select Destination Profile
Export as TIFF
Save as EPS
Print
Read Embedded Profile
Define RGB Colors
Define CMYK Colors
Define spot Colors
Convert RGB to CMYK
Convert CMYK to CMYK
Convert spot to CMYK
Embed Source Profile
Select Destination Profile
Export as TIFF
Save as EPS
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color
Matching
PostScript Color
Matching
Select Rendering Style (CRD)
Select RGB Separation: Output
Select RGB Separation: Simulation
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Device CMYK Simulation: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Custom Output Profile
print options
Define RGB Source
Select RGB Source: None
Select Output Profile
1-12 Simple and Advanced Workflows
1
Photoshop RGB with Illustrator CMYK and spot colors and PowerPoint RGB
This workflow involves short-run printing of a complex presentation document with
images saved in Photoshop, illustrations created in Illustrator, and spot colors.
All elements are imported into PowerPoint for output.
This document could be created as follows:
•Create an RGB image in Photoshop and save it as Photoshop EPS.
•Create a graphic in Illustrator using CMYK colors and a spot color and save as
Illustrator EPS.
•Create a presentation in PowerPoint using RGB colors.
•Import the Illustrator EPS graphic into the PowerPoint presentation and place the
Photoshop EPS image.
•Print the PowerPoint document to the Color Server.
•Use ColorWise to convert the PowerPoint RGB colors and Photoshop RGB image
to device CMYK, adjust the process colors for more saturated short-run printing,
and match the spot colors using the full device gamut.
1-13 Advanced workflows
1
The ColorWise settings used in this example are:
•RGB Source Profile set to EFIRGB or another RGB source definition
•Rendering Style set to Presentation
•RGB Separation set to Output
• CMYK Simulation set to None
•Spot Color Matching set to On
The following diagram indicates the steps for this particular workflow in black.
Photoshop RGB and Illustrator CMYK and spot colors in PowerPoint RGB workflow
PhotoshopIllustratorPowerPointPrinter driver
Read Embedded Profiles
Define RGB Source
Embed Source Profiles
Convert RGB to CMYK
Convert CMYK to CMYK
Select RGB Mode
Select CMYK Mode
Select Destination Profile
Save as TIFF
Save as EPS
Save as JPEG
Print
Read Embedded Profile
Define RGB Colors
Define CMYK Colors
Define spot colors
Convert RGB to CMYK
Convert spot to CMYK
Embed Source Profile
Select Destination Profile
Export as TIFF
Save as EPS
Print
Define RGB Colors
Convert CMYK to RGB
Print
(Mac OS-Only)
Black and White
Color/Grayscale
ColorSync Color
Matching
PostScript Color
Matching
ColorWise
print options
Define RGB Source
Select RGB Source: None
Select Rendering Style (CRD)
Select RGB Separation: Output
Select RGB Separation: Simulation
Convert Press CMYK to Press Sim.
Convert Press CMYK to Custom Sim.
Select Device CMYK Simulation: None
Turn Spot Color Matching On
Turn Spot Color Matching Off
Select Output Profile
Select Custom Output Profile
1-14 Simple and Advanced Workflows
1
Color proofing examples
The following examples illustrate methods for simulating the output from another
printing system, such as an offset press. Each of the proofing examples uses an ICC
profile to describe the destination color space. While some examples use simulation
profiles built into the Color Server, others use ColorWise Pro Tools (see the Color
Guide) to download custom ICC output profiles to the Color Server for use as
simulation profiles.
Photoshop 5.x RGB-to-CMYK conversion using a custom ICC profile
This workflow is useful for prepress environments that have integrated ICC color
management and profiles for the presses they use. In this example, an image in
Photoshop 5.x is converted from RGB to CMYK using the Photoshop ICC color
conversion features in the CMYK Setup option. Using the Simulation settings
available in ColorWise, the CMYK image is printed to the Color Server, and the
output is made to appear as if it were printed on an offset press. For more information
on CMYK Setup, see your Photoshop 5.x documentation.
This document could be created as follows:
•In Photoshop 5.x, set CMYK Model in CMYK Setup to ICC.
•In the Profile menu, select an ICC profile for the desired offset press. Click OK.
•Open an RGB image. Select Mode >CMYK Color from the Image menu.
•Save the image in any file format.
•Print directly to the Color Server.
•Use ColorWise Pro Tools to select a simulation profile or download a custom
ICC profile to the Color Server for use as a CMYK Simulation Profile.
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