Picture in legend of MPP network diagram

I know this is possible, but I can't figure out how to do it.

I have an Adobe file of the legend. I want to import it or cut and paste it into the legend. MPP won't let me import an Adobe file. I saved it as a jpeg, but it didn't work when I tried to import. I tried copying and pasting the Adobe into the legend and half looked like the original, but the other half was just the words without the blocks around them.

I know this will work. My mentor has been doing this, but he had a massive stroke before he taught me how. Now I have his schedules but not his skill and knowledge! Please help if you can!

I think the files mbbackus well be mismatched with Adobe file. So just suggest you to go with the supported format. As you say, you save it into jpeg format, but it’s not a well-matched or supported file. You have here one more thing which you can apply here, that is, use the tools which help you to convert this file in proper format.

Thank you. I will try that.