Adobe 22020737 Acrobat X Pro Manual - Page 437

USING ACROBAT X PRO 431 Print production tools More Help topics "Separate spot colors as process" on page 436 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. By default, when you print opaque, overlapping colors, the top color knocks out the area underneath. You can use overprinting to prevent knockout and make the topmost overlapping printing ink appear transparent in relation to the underlying ink. The degree of transparency in printing depends on the ink, paper, and printing method used. Last updated 10/11/2011