Adobe 5.5 Design Standard Manual de usuario descargar pdf (Pagina 41)

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Adobe Creative Suite 5 Printing Guide 39

Flaener Preview

e text on the le is aected by the drop shadow because it is below the drop shadow. e

text on the right isn’t aected by transparency because it is now above the drop shadow in

stacking order.

Photoshop blending mode issue

Within Photoshop, a shadow set to Multiply blend mode will darken

what’s underneath it. But when you place a Photoshop file into

InDesign, the shadow knocks out what’s underneath, lightening the

area rather than darkening it. To see the effect, place a Photoshop

image containing a shadow into InDesign, and then use Separations

Preview (Window > Output > Separations Preview). Turn off the black

separation, and you’ll see that the shadow knocks out anything behind

it. While this wouldn’t matter if the shadow fell on an empty area of the

page, the knockout effect will be obvious when it falls over other page

content.

Photoshop Blending Modes in InDesign

A Photoshop shadow looks satisfactory in composite view, but turning o the black plate in

the Separations Preview panel reveals a problem: rather than darkening everything, the

shadow knocks out everything underneath.

While InDesign honors opacity attributes of native, layered Photoshop

files, it does not handle all Photoshop blending modes. InDesign

handles its own shadows correctly, darkening content underneath.

Blending modes from Illustrator (including Illustrator-created shadows

and other effects) image correctly as well.

If the image is silhouetted and just requires a drop shadow (a concentric

shadow, offset from the image), eliminate the drop shadow in

Photoshop, and replicate it in InDesign. If, however, the designer has

created a cast shadow (for example, a shadow that would be cast by a

vase on the table under it), you must take special measures to ensure

that the shadow will image correctly.

If the shadow has been created on a separate layer from the object, the

Photoshop file can be correctly imaged from InDesign, after a minor

change (described in the following steps). If the shadow is on the same

layer as the object, it must be copied onto another layer, and deleted

from the object’s layer. The object and its shadow must be on separate

layers in Photoshop to be able to use this workaround:

1. Place the image in InDesign; then copy its frame to the clipboard.

Choose Object > Object Layer Options, and turn o 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 under-

lying objects.

2. Choose Edit > Paste in Place to paste the copied image. Use Ob-

ject Layer Options again, this time to turn o the shadow layer and

leave only the top layer. Check the results with Separations Pre-

view: you’ll see that the shadow no longer knocks out.

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Adobe 5.5 Design Standard Manual de usuario Pagina 41

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