Adobe 65023809 Printing Guide - Page 41

1. Place the image in InDesign; then copy its frame to the clipboard. Choose Object > Object Layer Options, and turn off the top layer, leaving only the shadow layer visible. Select the shadow frame, and set it to Multiply blend mode in the Transparency panel. You'll see immediately that the shadow looks more natural, darkening underlying objects. 2. Choose Edit > Paste in Place to paste the copied image. Use Object Layer Options again, this time to turn off the shadow layer and leave only the top layer. Check the results with Separations Preview: you'll see that the shadow no longer knocks out. Solving the Shadow Problem Place the image twice, for separate handling of the shadow and the object. Use Object Layer Options (left) to control the visibility of layers, and set the shadow's frame to Multiply. The result: a shadow that images correctly (right). Keep in mind that the limitations (and solution) apply to anything in a Photoshop file that uses any blending mode (not just shadows, and not just the Multiply blend mode). Screen Mode To see different representations of a document, choose View > Screen Mode and select from the Screen Mode menu to toggle among four Screen options (you can also use the last tool at the bottom of the toolbox to select these modes): • Normal: Page and pasteboard are visible, and guides, margin indicators and hidden characters (such as paragraph markers) may also be shown, depending on the user's preferences. • Preview: Guides, margin indicators, and hidden characters are not displayed. The pasteboard area changes to gray (unless the user has selected another color in preferences), and only the trim area of the page is shown. Any non-printing objects are also invisible. Preview is also useful for quickly noticing any artwork too close to trim. Quickly toggle between Normal and Preview modes by pressing the W key on the keyboard (provided you are not currently in a text frame). • Bleed: Appearance is the same as for basic Preview mode, except that the bleed area is also displayed, if a bleed zone has been set up. This can make it easier to visually determine if the document has adequate bleed. To set up a bleed zone if the document does not have one, choose File > Document Setup, and enter the appropriate value in the Bleed amount fields. Click the More Options button in the Document Setup dialog if necessary to display the Bleed amount fields. • Slug: The trim area of the page is displayed, along with the designated slug area. Color Management Issues Handling alerts about missing or mismatched color profiles Color management is enabled by default throughout Adobe Creative Suite 4. Under most circumstances, the most flexible prepress workflow is to have color management on, because the color settings are designed for a safe CMYK workflow. Turning color management off also disables profile and policy warnings, which increases the chance of misinterpreted colors as graphics are moved among applications, particularly for RGB objects from color-managed applications. If you frequently encounter alerts indicating missing or mismatched profiles, provide customers with the color settings in use at your shop and have them use Adobe Bridge to synchronize them across their workgroup. Some color settings files, such as the North American General Purpose 2, are configured to preserve CMYK numbers and convert RGB without displaying mismatch warnings. If you use such a color settings file you will rarely encounter the warnings described below. Other color settings, such as North American Prepress 2, are set to display warnings so that you can monitor workflow status more closely. If you do see the following alerts, it is safer from a prepress point of view to make choices that preserve RGB profiles and preserve color numbers of CMYK objects. When you open a file that displays a mismatch alert, you may Adobe Creative Suite 4 Printing Guide 39