Let's pretend I want to use this image from Wikimedia Commons

Here's the license on the image:

You are free:

  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work

Under the following conditions:

  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

If the image is going to cover the entire slide on my Powerpoint presentation, where should I attribute the author/licensor? Can I have a slide in the end with all the attributions or should I mention it on the image itself (e.g. at the bottom right corner).

Edit: The presentation will be recorded and posted on YouTube.


Bottom right corner (maybe unobtrusive in gray, as not to interfere with the white background) seems right to me - you see this often in paper magazines, too. This way nobody can easily or accidentally strip the attribution. A [number] (even maybe just the slide number) and picture credits on the last slide would be the second-best choice.

And it's nice (for a change) to have someone respecting the license terms. Thank you :)

  • I'd add that especially if you are going to post this on YouTube, note all of the requirements for attribution under the license, which often goes beyond simple credit to also include a reference to the license itself. That said, it's also quite possible that your use of the image falls under "fair use" in which case you might not need to carefully follow the license (though it's still a nice practice), but do still adhere to academic standards of citation. – Bryan Krause Jun 19 '17 at 20:27

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