After adding Bookmarks to video clips in PowerPoint 2013, you may want to know how you can edit and remove those Bookmarks. At this point of time, let’s state some facts — we have bad news and good news. The bad news is that PowerPoint does not let you edit the inserted Bookmarks — for instance, you cannot change the time of the Bookmark from 25 seconds to 28 seconds. You will have to remove the Bookmark you wanted to edit, and add a new Bookmark all over again! On the other hand, removing a Bookmark is easy — and that is the good news!