We recommend choosing one of these RGB color spaces, depending on your output needs: Monitor RGB [current display profile] sets the RGB working space to your display profile, and is use
Trang 1North America The default RGB color space that is assigned to this setting is Adobe RGB
When CMYK documents are opened, their values are preserved
North America Web/Internet is designed for
online output All RGB images are converted to the sRGB color space
3 The Working Spaces settings control how RGB
and CMYK colors are treated in a document that lacks an embedded profile You can either leave these settings as they are or choose other options (the RGB options are discussed below)
For the CMYK setting, ask your output service
provider which working space to choose
We recommend choosing one of these RGB
color spaces, depending on your output needs:
Monitor RGB [current display profile] sets the
RGB working space to your display profile, and
is useful if you know that other applications you’ll be using for your project don’t support color management Keep in mind, however, that if you share files that use your monitor profile (as the color space) with another user, their monitor profile will be substituted for the RGB working space, and this may undermine the color consistency that you’re aiming for
ColorSync RGB (Mac OS only) matches
the Photoshop RGB space to the space that’s specified in the Apple ColorSync Utility If you share this configuration with another user, it will use the ColorSync space that’s specified in their system
Adobe RGB 1998 contains a wide range
of colors and is useful when converting RGB images to CMYK You may have gotten our drift by now that this option is recommended for print output but not for online output
ProPhoto RGB contains a very wide range of
colors and is useful for output to high-end inkjet and dye sublimation printers
sRGB IEC619662.1 is a good choice for Web
output, as it reflects the settings on the average computer display Many hardware and software manufacturers use this as the default space for scanners, low-end printers, and software
4 Click OK.
Continuing with our recommended steps for color
management, you’ll use the Color Settings dialog
to set the color space for Photoshop If you want to
get up and running quickly by establishing Adobe
RGB as the color space without wading through all
the options in the Color Settings dialog, you can
make one simple preset choice by following the
first set of instructions below — that is, if you use
the program primarily to produce images for print
output on a commercial or color inkjet printer and
you’ve followed our instructions for color
manage-ment thus far
To choose a color settings preset:
1 Choose Edit > Color Settings (Ctrl-Shift-K/
Cmd-Shift-K) The Color Settings dialog opens
(A, next page)
2 Choose Settings: North America Prepress 2
(readers residing outside North America,
choose an equivalent for your output device
and geographic location) This preset changes
the RGB working space to Adobe RGB (1998),
and sets all the color management policies to
the safe choice of Preserve Embedded Profiles
so each file you open in Photoshop will keep its
own profile
3. Click OK
If you want to explore the Color Settings dialog in
more depth, follow these instructions instead Pick
and choose among the options, depending on your
output requirements
To choose color settings options:
1 Choose Edit > Color Settings (Ctrl-Shift-K/
Cmd-Shift-K) The Color Settings dialog opens
(A, next page)
2 From the Settings menu, choose one of these
presets, depending on your output needs:
Monitor Color sets the RGB working space to
your display profile This is a good choice for
video output, but not for print output
North America General Purpose 2 meets the
requirements for screen and print output in
North America All profile warnings are off
North America Newspaper manages color for
output on newsprint paper stock
North America Prepress 2 manages color to
conform with common press conditions in
Choosing a color space for Photoshop
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DOCUMENT-SPECIFIC COLOR
Photoshop supports document-specifi c color, meaning that each document keeps its own color profi le The profi le controls how colors in the fi le are previewed onscreen, edited, and converted
on output For documents that lack an embedded profi le, Photoshop generates a preview using the current working space
➤ The Adobe RGB (1998) color space, which
is recommended for print output, includes
more colors in the printable CMYK gamut
than the sRGB IEC61966-2.1 color space,
which is designed for online output Although
sRGB IEC61966-2.1 is the default listing on the
Working Spaces: RGB menu in the Color Settings
dialog, it can spell disaster for print output
A We chose North America Prepress 2 from the Settings menu in the Color Settings dialog.
The Description area provides information about whichever Color Settings option the pointer
is currently hovering over.
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Before synchronizing the color settings via Bridge, make sure you’ve chosen the proper settings in Photoshop (see the preceding two pages)
To synchronize the color settings among Creative Suite applications using Bridge:
1 On the Application bar in Photoshop, click the Launch Bridge button.
2 In Bridge, choose Edit > Creative Suite Color Settings (Ctrl-Shift-K/Cmd-Shift-K) The Suite
Color Settings dialog opens.A
3. Click the same settings preset you chose in the Color Settings dialog in Photoshop, then click
Apply Bridge will change (synchronize) the
color settings of the other Adobe Creative Suite applications to conform to the selected preset
Synchronizing color settings
If the color settings in another Adobe Creative
Suite program that you have installed on your
system (such as Illustrator or InDesign) don’t
match the settings in Photoshop, an alert will
dis-play at the top of the Color Settings dialog (as in A,
next page) If you haven’t installed one of the
full Adobe Creative Suites, you’ll have to start up
the errant application and fix its color settings
by hand If you do have a suite installed, you can
use the Suite Color Settings dialog in Bridge to
synchronize the color settings for all of the
color-managed Adobe programs on your system
A Use the Suite Color Settings dialog to synchronize the color settings of all the
applications in the Adobe Creative Suite that you have installed on your system.
MATCHING THE SETTINGS
The presets in the Suite Color Settings dialog
are the same as on the Settings menu in the
Color Settings dialog (see page 10) Keep Show
Expanded List of Color Settings Files unchecked
to display just the fi ve basic presets
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Customizing your color policies
The current color management policies govern
whether Photoshop honors or overrides a
docu-ment’s settings if the color profile in the file, when
opened or imported, doesn’t conform to the current
color settings in Photoshop If you chose the North
America Prepress 2 setting in the Color Settings
dialog (page 10), the Ask When Opening policy
(the safest option, in our opinion) is already chosen
for you, and you can skip these instructions
To customize the color management
policies for Photoshop:
1 Choose Edit > Color Settings (Ctrl-Shift-K/
Cmd-Shift-K) The Color Settings dialog opens.A
2 From the Color Management Policies menus,
choose an option for files that are to be opened
or imported into Photoshop:
Off to prevent Photoshop from color-managing
the files
Preserve Embedded Profiles if you expect to
work with both color-managed and
non-color-managed documents, and you want each file to
keep its own profile
Convert to Working RGB or Convert to Working CMYK to have all documents that
you open or import into Photoshop adopt the program’s current color working space This is usually the best choice for Web output
3 Do any of the following optional steps:
For Profile Mismatches, if you check Ask
When Opening, Photoshop will display an
alert if the color profile in a file you’re opening doesn’t match the current working space
Via the alert, you will be able to override the current color management policy for each file
Check Ask When Pasting to have Photo shop
display an alert if it encounters a color profile mismatch when you paste or drag and drop color imagery into a document The alert lets you override your color management policy when pasting
For files with Missing Profiles, check Ask
When Opening to have Photoshop display an
alert offering an option to assign a profile
4 Click OK.
A Choose Color Management Policies options from this area
of the Color Settings dialog.
Because we chose some non-default options from the menus, “Custom” appears
on the Settings menu — but more important, the color settings are no longer syn-chronized among the Adobe Creative Suite applications that are installed on our system.
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Saving custom color settings
For desktop color printing, we recommended
choosing North America Prepress 2 as the color
setting for Photoshop (see page 10) For
commer-cial printing, let the pros supply the proper color
settings: Ask your print shop to send you a csf
file with all the correct Working Spaces and Color
Management Policies settings for their
particu-lar press Then all you’ll need to do is install that
custom color settings file in the proper location
by following the instructions below and, when
needed, choose it from the Settings menu in the
Color Settings dialog
To save custom color settings as defaults
for the Creative Suite:
1 In Windows, put the file in Program Files\
Common Files\ Adobe \Color\Settings
In the Mac OS, put the file in Users/[user
name]/Library/Application Support/ Adobe/
Color/Settings
2 To access the newly saved settings file, open the
Color Settings dialog, then choose the name of
the csf file from the Settings menu
If your print shop gives you a list of recommended
settings for the Color Settings dialog — but not an
actual csf file — you can choose and then save that
collection of settings as a csf file by following these
instructions
To save custom color settings:
1 Choose Edit > Color Settings (Ctrl-Shift-K/
Cmd-Shift-K) The Color Settings dialog opens
2. Enter the required settings by choosing and
checking the appropriate options
3 Click Save and enter a file name (we
recom-mend including the printer type in the name),
keep the csf extension and the default
loca-tion, then click Save
4. Click OK to exit the Color Settings dialog
Acquiring printer profiles
Thus far, we’ve shown you how to set your camera
to the Adobe RGB color space, calibrate your dis-play, and specify Adobe RGB as the color space for Photoshop Next you’ll learn how to acquire the proper printer profile(s) so you can incorporate color management into your specific printing scenario
To download the printer profile for an inkjet printer:
Most printer manufacturers have a website from which you can download either an ICC profile for
a specific printer/paper combination or a printer driver that contains a collection of specific ICC printer/paper profiles Be sure to choose a profile that conforms to the particular printer/paper com-bination you will be using
1 On the following page, we step you through a
few pages on the websites for two manufactur-ers of widely used printmanufactur-ers: Epson, focusing on the Stylus Photo R series (Epson.com) (A–C, next page) and Canon (Canon.com) (D–F, next page)
Another option is to also download an ICC profile for a specific printer/paper combo from the website for a paper manufacturer, such as ilford.com or crane.com/museo
Note: The profiles for the newest printer models may not be available yet on these sites
Check back periodically
2. After visiting the website, install the profile you downloaded by following the instructions that accompany it
On pages 404–405, we’ll show you how to use the profile to soft-proof a document onscreen
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C On the page for the printer model, below Drivers &
Downloads, click the link for your operating system On
the Drivers & Downloads page (shown above), click the
link for Premium ICC Profiles for [printer name].
On the Premium ICC Printer Profiles page (not shown),
click the profile for your chosen paper type.
F On the Drivers & Downloads page, select your operating system, then click the correct printer driver The driver will install the profiles automatically.
E From the menus, choose the Printers category, product type (printer series), and printer model, then click Go
B Click Ink Jet under Printers, then click your printer
model on the list of printers.
FINDING A PROFILE FOR AN EPSON STYLUS PRINTER,
PHOTO R SERIES
FINDING A PROFILE FOR A CANON INKJET PRINTER
D On the Canon.com home page for your region, choose Downloads > Consumer
A On the Epson.com home page for your region, choose
Drivers & Support > Printers
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Changing color profiles
When a file’s profile doesn’t conform to the
cur-rent working space (Adobe RGB, in our case) or the
color profile is missing altogether, you can use the
Assign Profile command to assign the correct one
You may notice visible color shifts if the color data
of the file is reinterpreted to conform to the new
profile, but rest assured, the color data in the actual
image is preserved Do keep Preview checked,
though, so you can see what you’re getting into
To change or remove a file’s color profile:
1 With a file open in Photoshop, choose Edit >
Assign Profile If the file contains layers, an
alert may appear, warning you that the
appear-ance of the layers may change; click OK The
Assign Profile dialog opens.A
2 Check Preview, then click one of the following:
To remove the color profile, click Don’t Color
Manage This Document.
To assign your current working space to the
file, click Working [document color mode
and the name of your chosen working space]
If you followed our instructions for color
management, you’ve already specified Adobe
RGB as the Working RGB space, but you can
click this option for any photo that wasn’t
shot or scanned using that color space
To assign a different profile, click Profile, then
choose a profile that differs from your current
working space
3 Click OK
WHERE A DOCUMENT’S PROFILE IS LISTED
➤ If Document Profi le is chosen from the Status
bar menu at the bottom of the application frame,
the current profi le will be listed on the bar
➤ In the File > Save As dialog, if you save a
fi le in a format that supports embedded profi les,
such as Photoshop (PSD) or Photoshop PDF, you
can check ICC Profi le… (Windows)/Embed Color
Profi le… (Mac OS) to embed the profi le with the
fi le — if one has been assigned
➤ In the File > Print dialog, the profi le name
appears in the upper right, under “Document.”
B Use the Convert to Profile dialog to convert your document
to a different color profile Here, we’re switching from the Adobe RGB profile to our working CMYK profile for a stan-dard web press that uses coated paper.
A Use the Assign Profile dialog to either remove a color profile
or assign a different one.
The Convert to Profile command lets you preview the conversion of a document to an assortment of output profiles and intents, and then converts the color data to the chosen profile Note: This com-mand performs a mode conversion and changes the actual color data in your file!
To convert a file’s color profile:
1 Choose Edit > Convert to Profile.In the Convert to Profile dialog,Bcheck Preview
2 Under Destina tion Space, from the Profile
menu, choose the profile you want to convert the file to (it doesn’t necessarily have to be the current working space)
3 Under Conversion Options, choose an Intent
(for the intents, see the sidebar on page 405)
4 Leave the default Engine as Adobe (ACE) and keep Use Black Point Compensation and Use
Dither checked.
5 Optional: Check Flatten Image to Preserve
Appearance to merge all layers and adjustment layers in the document
6. Click OK