I'm working on an interactive PDF in InDesign with an embedded mp4 video. When I export the pdf the video only plays in adobe reader but not in preview. I also uploaded it to google drive to send to people but the video won't play on google drive either. Is this an issue with the way I'm embedding/exporting the interactive PDF or is this a compatibility issue with preview and google drive?
If the file is downloaded by someone who doesn't have adobe reader, how can I make sure the file will open in adobe reader for them?
The only sure way to view an Adobe PDF is in Reader or Acrobat.
There are hundreds of PDF readers. Most of them only view only simple files and fail with interactivity, or PDFs for specialized uses like prepress. As Bob said, the only readers you can be sure of are Adobe Reader and Acrobat. Tell your viewers to download the FREE Adobe Reader to get the best viewing experience, and provide a link to Adobe Reader.