How to Mix Portrait and Landscape in Microsoft PowerPoint?
Microsoft Powerpoint has no ability to mix Portrait and Landscape orientation in the same document / presentation like Microsoft Word.
But we can use a trick to do that. Here is the trick:
1. Create two presentations, one in Landscape dan one in Portrait orientation and Save.
2. Then open first presentation, click Insert Tab
3. Click Action Button, and Choose Hyperlink to, then choose Other Power Point Presentation
4. Locate the potrait presentation
5. Clik OK
here is the video
picture take from here