Best Answer: Does Photoshop Have Alpha Lock?
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You can have multiple alpha channels per document, but only one transparency channel. Photoshop handles transparency and alpha channels separately. Transparency from an existing PNG can be edited in Photoshop by creating a layer mask from the transparency data (see steps below).

Is there alpha lock on Photoshop?

May 21, 2016. Posted in: Tip Of The Day. To lock transparent pixels, so that you can only paint in pixels that are opaque, press the / (forward slash) key or click on the first icon next to the word “Lock:” in the Layers panel. To unlock transparent pixels press the / key again.

How do I get the alpha channel in Photoshop?

To load an alpha channel, use any one of these many methods:

  1. Choose Select→Load Selection. …
  2. Select the alpha channel in the Channels panel, click the Load Channel as Selection icon at the bottom of the panel, and then click the composite channel.
  3. Drag the channel to the Load Channel as Selection icon.
James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.

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