Hello there, @pennyd ...
I am sorry to see that your question has been sitting out here in the Community unanswered since early December. I wanted to check in with you because I noticed we've not heard anything from you since you first posted this question. Are you still having difficulties viewing *.jpg images in the SpeedGrader? I just tested this in my own sandbox course by uploading a 112KB *.jpg file to an assignment as a student. When I viewed the assignment as an instructor, I was able to see the image just fine in the SpeedGrader. Hopefully, you've been able to get this resolved on your end, but if not, I would recommend that you reach out to Canvas Support to report this issue so they can investigate further. For the time being, I am going to mark your question as "Assumed Answered"...not because we've found a solution for you...but more because we've not heard back from you in over six months. However, this won't keep you or others from posting additional questions and/or comments below related to this topic. I hope that's okay with you, Penny. Looking forward to hearing back from you soon. Take care...be well.
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