Impure CMYK Gray is used (equal and non-zero amounts of Cyan,
Magenta, and Yellow)
Determines whether the PDF file contains any impure gray.
Gray produced by equal amounts of cyan, magenta, and yellow
is considered impure.
To convert the impure gray to shades of black ink only, select
the
Fix
check box.
Spot Color
Spot color is used
Identifies painted spot colors in the PDF file.
To restrict spot color detection within a bounding box, select
the
Restrict to elements within
check box, and then select
media box
,
crop box
,
trim box
,
art box
, or
bleed box
.
Spot color definition is ambiguous
Determines when two spot colors use the same name but have
different alternate color space (ACS) values or different recipes
(for example, CMYK equivalents) in the PDF file.
To repair the ambiguous spot colors, select the
Fix
check box.
PDF Preflight uses the spot color with L*a*b* ACS, then CMYK
ACS, then gray ACS, and finally RGB ACS. If the spot colors use
the same ACS, PDF Preflight uses the first instance of the spot
color and applies that instance to all other spot colors with the
same name.
Spot color suffix is not
Determines specific PANTONE spot color name endings in the
PDF file. In the list, you can select
C
,
CV
,
CVC
,
CVS
,
CVU
,
CVP
,
or
U
.
For example, if you select
Spot color suffix is not: CV
, PDF
Preflight checks the PDF file for spot color suffixes that are not
CV
. To change the name endings to
CV
, select the
Fix
check
box.
Use this option to ensure that identical PANTONE spot colors
appear on the same separation, even if they originally had
different name endings.
Spot color has an alternative color space other than CMYK or Gray
Identifies spot colors with an ACS definition other than CMYK
or gray in the PDF file.
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Chapter 10—Refining
