Operation Manual

323
USING ACROBAT X STANDARD
Color management
Last updated 10/11/2011
When you color-manage documents that will be viewed exclusively on the web, Adobe recommends that you use the
sRGB color space. sRGB is the default working space for most Adobe color settings, but you can verify that sRGB is
selected in the Color Management preferences. With the working space set to sRGB, any RGB graphics you create will
use sRGB as the color space.
When working with images that have an embedded color profile other than sRGB, you should convert the image’s
colors to sRGB before you save the image for use on the web. If you want the application to automatically convert the
colors to sRGB when you open the image, select Convert To Working Space as the RGB color management policy.
(Make sure that your RGB working space is set to sRGB.)
More Help topics
“About color working spaces” on page 328
Color-managing PDFs for online viewing
When you export PDFs, you can choose to embed profiles. PDFs with embedded profiles reproduce color consistently
in Acrobat 4.0 or later running under a properly configured color management system.
Keep in mind that embedding color profiles increases the size of PDFs. RGB profiles are usually small (around 3 KB);
however, CMYK profiles can range from 0.5 to 2
MB.
More Help topics
“Printing with color management” on page 324
Color-managing HTML documents for online viewing
Many web browsers do not support color management. Of the browsers that do support color management, not all
instances can be considered color-managed because they may be running on systems where the monitors are not
calibrated. In addition, few web pages contain images with embedded profiles. If you manage a highly controlled
environment, such as the intranet of a design studio, you may be able to achieve some degree of HTML color
management for images by equipping everyone with a browser that supports color management and calibrating all
monitors.
You can approximate how colors will look on uncalibrated monitors by using the sRGB color space. However, because
color reproduction varies among uncalibrated monitors, you still won’t be able to anticipate the true range of potential
display variations.
Proofing colors
About soft-proofing colors
In a traditional publishing workflow, you print a hard proof of your document to preview how its colors will look when
reproduced on a specific output device. In a color-managed workflow, you can use the precision of color profiles to
soft-proof your document directly on the monitor. You can display an on-screen preview of how your document’s
colors will look when reproduced on a particular output device.
Keep in mind that the reliability of the soft proof depends upon the quality of your monitor, the profiles of your
monitor and output devices, and the ambient lighting conditions of your work environment.