You can adjust a layer's opacity to create different levels of transparency. The Opacity slider covers a range of 0% (completely transparent) to 100% (completely opaque).
To change a layer's opacity
1 Select the layer you want to change.
2 On the Layers palette, do one of the following:
• Move the Opacity slider.
• Type a percentage in the Opacity box, and press Return (Mac OS) or Enter (Windows).
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