Adobe InDesign - Manual (Page 641)

Adding transparency effects
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To the top
About transparency
Effects panel overview
Apply transparency effects
Transparency effects
Use Global Light
Set the opacity of an object
Applying transparency to groups
Change the appearance of transparent artwork on screen
Stop displaying transparency
Removing white box effect in documents with transparency
When you create an object in Adobe InDesign, by default it appears solid; that is, it has an opacity of 100%. You can apply effects to objects using
opacity and blends. Overlap objects, add transparency to objects, or knock out shapes behind objects.
About transparency
When you create an object or stroke, when you apply a fill, or when you enter text, by default these items appear solid; that is, they have an
opacity of 100%. You can make the items transparent in a variety of ways. For example, you can vary the opacity from 100% (completely opaque)
to 0% (completely transparent). When you decrease opacity, the underlying artwork becomes visible through the surface of the object, stroke, fill,
or text.
You use the Effects panel to specify the opacity an object, its stroke, its fill, or its text, You can decide how the object itself, its stroke, fill, or text
blend with objects beneath. Where objects are concerned, you can choose to isolate blending to specific objects so that only some objects in a
group blend with objects below them, or you can have objects knock out rather than blend with objects in a group.
Areas of underlying objects appear through transparent object.
Effects panel overview
Use the Effects panel (Window > Effects) to specify the opacity and blending mode of objects and groups, isolate blending to a particular group,
knock out objects inside a group, or apply a transparency effect.
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