User guide

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Table Of Contents

Chapter 1: Getting Started24

Preferences > Jobs Color

Management

Color Management in a Nutshell

A color management system (CMS) is designed to

reconcile the different color capabilities of input

devices, e.g. a scanner or digital camera, and out-

put devices, e.g. a printer or press, to ensure con-

sistent color throughout the creation, display, and

print process. Ideally, this means that the colors

displayed on your monitor accurately represent the

colors of the final output. It also means that differ-

ent applications, monitors, and operating systems

will display colors consistently.

Using ICC Profiles for Color Conversion

To eliminate, or at least minimize, color differences

between devices, you can use ICC (International

Color Consortium) profiles whenever color conver-

sions are made during preflight and correction.

An ICC profile is a mathematical description of the

color space used by a specific device. All objects in

your PDF documents, i.e. text, graphics and images,

can be associated, or “tagged”, with an ICC profile

for a given color space (Grayscale, RGB or CMYK).

You can select an ICC profile for each color space in

the Instant PDF preferences. If you want to make

separate settings for Images and other objects,

select the “Use other settings for images than for

objects. The pane underneath will then show two

tabs, one for images and one for other objects.

However, you may also be using Preflight Profiles or

Action Lists in which ICC profiles have been speci-

fied too. In that case, the ICC profiles in the respec-

tive Preflight Profiles or Action Lists will take prece-

dence over those which you selected in the Instant

PDF preferences.

To set the color management preferences:

1 Choose File > Preferences > Jobs Color Man-

agement on Windows, or Instant PDF > Pref-

erences > Jobs Color Management on Mac OS

2 If you want to make separate settings for

Images and other objects, select the “Use

other settings for images than for objects. The

pane underneath will then show two tabs,

one for images and one for other objects

3 Click the Enable Color Management check box.

4 Select Source ICC profiles for the color models

of your choice.

5 If you want to use different ICC profiles for

Target, enable the check box and select the

Target icc profiles for the color models of your

choice.

6 Select the CMM Engine you want to use.