Adobe 62000112DM User Guide - Page 476

ADOBE ACROBAT 3D VERSION 8 469 User Guide Transparent Use for clear inks to ensure that underlying items trap. Use this option for varnishes and dieline inks. Opaque Use for heavy, nontransparent inks to prevent trapping of underlying colors but allow for trapping along the ink's edges. Use this option for metallic inks. Opaque Ignore Use for heavy, nontransparent inks to prevent trapping of underlying colors and to prevent trapping along the ink's edges. Use this option for those inks, such as metallics and varnishes, that have undesirable interac­ tions with other inks. Adjust the trapping sequence The trapping sequence (also called the trapping order) matches the order in which inks are printed at the press, but it doesn't match the order in which separations are produced at the output device. The trapping sequence is particularly important when you're printing with multiple opaque colors, such as metallic inks. Opaque inks with lower sequence numbers are spread under opaque inks with higher sequence numbers. This process prevents the last applied ink from being spread, and it still creates good traps. Note: Don't alter the default trapping sequence without first consulting with your prepress service provider. 1 Open the Ink Manager. The current trapping sequence is displayed in the Sequence column of the inks list. 2 Select an ink, type a new value for Trapping Sequence, and then press Tab. The sequence number of the selected ink changes, and the other sequence numbers change accordingly. 3 Repeat the previous step for as many inks as necessary, and then click OK. Previewing output Output Preview dialog box overview The Output Preview dialog box simulates how your PDF looks in different conditions. The top part of the dialog box has several controls for previewing how your document will look in print. The Preview menu allows you to switch between previewing separations and previewing color warnings. When you select Separations, the bottom half of the dialog box lists information about the inks in the file, as well as ink warning controls and total area coverage controls. When you select Color Warnings, a warnings section replaces the separations section. The preview settings you specify in the Output Preview dialog box are reflected directly in the open document. Output Preview also includes access to the complete Ink Manager (as seen in the rest of Adobe Creative Suite) for remapping spot-color inks in both printing and previewing. Ink mapping for previewing only applies when the Output Preview dialog box is open. Note: If you are using a color management system (CMS) with accurately calibrated ICC profiles and have calibrated your monitor, the on-screen separation preview colors more closely match the final color separation output.