Adobe Acrobat 9 PRO Extended - Manual (Page 470)

464 USING ACROBAT 9 PRO EXTENDED
Print production tools
Last updated 9/30/2011
• To hide one or more separations, deselect the box to the left of each separation name.
• To view all process or spot plates at once, select the box for Process Plates or Spot Plates.
Note: A single process or spot plate appears as a black plate. This makes objects on a light-colored plate, such as yellow,
appear more visible.
More Help topics
“ Separate spot colors as process ” on page 469
Check ink coverage
Too much ink can saturate paper and cause drying problems or change the expected color characteristics of the
document. Total Area Coverage specifies the total percentage of all inks used. For example, 280 means 280% ink
coverage, which could be accomplished with 60C, 60M, 60Y, and 100K. Ask your print service provider for the
maximum ink coverage of the press you use for printing. You can then preview the document to identify areas where
total ink coverage exceeds the press limit.
1 In the Output Preview dialog box, choose Separations from the Preview menu.
2 Do one of the following:
• To check for specific area coverage, use the pointer to hover over that area in the document window. Ink coverage
percentages appear in the ink list next to each ink name.
• To check for total document coverage, select Total Area Coverage, and choose a number from the pop-up menu or
type a percentage in the box.
• To set a sample size, choose an option from the Sample Size list. Point Sample specifies the value of the pixel you
click. 3 By 3 Average and 5 By 5 Average specify the average value of the specified number of pixels within the area
you click. Sample size does not have an impact on the Total Area Coverage warnings. It only has an impact on the
percentages next to each of the individual plates.
You can adjust ink coverage by converting some spot colors to process colors using the Ink Manager.
Set the background color
You can simulate what your document would look like if printed on color paper.
1 In the Output Preview dialog box, choose Separations from the Preview menu.
2 Select the Set Page Background Color option at the bottom of the dialog box, and then select a color.
View color warnings
Output problems can occur when the colors in a document are not reproducible on a particular press, or when rich
black is used unintentionally on type. To diagnose such color problems before handing off a PDF for high-end output,
you can use the various color warnings in the Output Preview dialog box. Pixels in areas that trigger the warning are
displayed in the warning color, which is identified by the swatch color next to the warning type.
1 In the Output Preview dialog box, choose Color Warnings from the Preview menu.
2 Select either or both of the following options:
Show Overprinting Indicates where on the page overprinting appears in color-separated output. If you select Simulate
Overprinting in the Output panel of the Advanced Print Setup dialog box, you can also see overprinting effects when
you output to a composite printing device. This option is useful for proofing color separations.