This tutorial is intended to introduce you to a few simple commands, and
some concepts in order to create a logo that appears to be floating
above a background, like this:

The concepts are ones that you’ll likely come across multiple times
while working in graphics processing. Layer masks are used to isolate a
part of an image, thus allowing it to be placed over a random
background for instance. The addition of a drop-shadow effect to make an
object appear to be floating over the background is another example.
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
Getting Started
Create a new image of appropriate size for your logo:
File → New…
This will open the “Create a New Image” dialog, with options for you to specify:
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