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I'm trying to transform my whole image which contains an Alpha channel. When I select all with the Alpha channel visible, the transform does not apply to the Alpha channel. What can I do to transform the RGB and Alpha channels simultaneously?

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If your image is flattened you can just:

  • Select All.
  • Click the RGB channel in the Channels panel.
  • Shift-click the alpha channel in the Channels panel.
  • Perform the wanted transformation.

Otherwise you can:

  • Select the layer you want to transform.
  • Select All.
  • Perform the wanted transformation.
  • Select All.
  • Click the alpha channel in the Channels panel.
  • Use Edit > Transform > Again to repeat the transformation.
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  • 1st option: I tired this, but it wont highlight the channel and RGB. It will only select one or the other. 2nd option works ! Oct 5, 2020 at 21:04
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    Good to hear! The first option probably fails because your document has multiple layers? It only works with flat images.
    – Wolff
    Oct 5, 2020 at 21:08
  • no it was only 1 layer Oct 5, 2020 at 21:11
  • But was it flattened (the only layer is called "Background" and has a lock symbol)?
    – Wolff
    Oct 5, 2020 at 21:13
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    That should really be a whole new question. But OK, as a welcome gift 😉. When you paste it's placed in the middle of the current selection (but always inside the canvas). If you have no selection it's placed in the middle of the current view. So to place in the exact same spot just keep the selection while pasting.
    – Wolff
    Oct 5, 2020 at 21:21

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