To see if your graphic is transparent, open your design in a graphic editor. If the background is peeking through your design, it’s transparent. If you’re using advanced graphic editors (e.g. Adobe Photoshop) that indicate transparency by a special pattern that resembles a checkerboard, you can:

  • Unlock the background layer and turn off the layer by clicking the eye icon —if you see the checkered canvas through your design, it’s transparent;
  • Duplicate the design layer (use keyboard shortcut Ctrl/Cmd ⌘ + J) and see if the areas in question become darker.