This can sound unusual for example if we try to find applications but if we want to embed a Video into a PDF document there are ways to do this. Especially if you want to use video in your presentations that need to be shared with colleagues as a PDF documents. You can do this to insert a video in PDF using Adobe Acrobat X. This is a tip I found in Ideatransplant.
First you need to save your PowerPoint presentation as a PDF without the video in the slide design.
Then, open powerpoint in Adobe Acrobat X and select tools at the top right corner. Here you need to choose multimedia and select video. Then draw where you want to insert the video using the cross hair cursor.
Select the video or you can insert a YouTube video link if you already uploaded it online. Then choose advanced options and select to use poster image from the pick right cover.
After all click done and save the PDF document.