Videos Play Video 1. Edit Header, Footer & Add Your Logo - Full VideoPlay Video 2. Edit PowerPoint Header in Slide Master Play Video 3. Add Logo & Footer in PowerPoint (Slide Master) Screenshots If you cannot edit or do anything to some shapes or texts, you can edit it in Slide Master. Example Theme: Biz Box Theme You can do a lot more in Slide Master, replace original shape with your logo or remove it.