Adobe Photoshop CS4 | ![]() |
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Specify opacity for a layer or groupA layer’s opacity determines to what degree it obscures or reveals the layer beneath it. A layer with 1% opacity appears nearly transparent, whereas one with 100% opacity appears completely opaque. Note: You
cannot change the opacity of a background layer or a locked layer.
You can, however, convert a background layer into a regular layer,
which does support transparency. See Convert background and layers.
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