Peter to abroad

Peter is going abroad to give presentation during the next 3 weeks (13 Sep till 31 Sep). The destinations would cover Japan, Hongkong, Malaysia and Taiwan. However he's a bit nervous about his powerpoint slides as the slides keeps breakinig as soon as he fixes the powerpoint file - the position of pictures moves away from where they are supposed to be, the size of text fonts varies, the animations behave oddly , and the most weird thing is that the powerpoint file size goes up to more than 200MB! I'll have a look on the file and see what the hell is the problem with it.