.......
1: Use something that doesn't paste a giant add onto the screen, even if it takes more work its alot better in the long run because people can see the video. (again any program can lace pics together so please find one without a watermark)
2: This isnt youtube, having adds plastered over the screen isnt a problem there but it detracts distracts and causes what some are calling not bad to just be another bad memory.
3: You again say its from youtube, is it yours? If so post a link to the vid and have in the description something saying that it is on the youtube video itself, otherwise people are going to bootkick your material all over for copy pasting other peoples work.... just a heads up.
Im sorry to give a 0 , but i cant help but feel the add especially is the by product of not caring.