Hello I am having some problems about sizes for youtube. I bought intro and the size of intro is : 960 X 540. My end intro (just simple picture for subscribe and social follow) is 640 x 480. Should I made same size of end intro (picture), video and end intro. But It needs to be in HD resolution everything.
I think I should resize intro to 1920x1080 (1080p) or 1280x720(720p) and same for video and end picture.
Thanks for helping me.