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If they support a somewhat recent version of PDF, they’ll have to; PDF itself can contain video. https://helpx.adobe.com/acrobat/using/rich-media.html:

“Adding video, sound, and interactive content transforms PDFs into multidimensional communication tools that increase interest and engagement in your documents.

All multimedia that are H.264 compliant can be played back in Adobe Reader 9 and later. (H.264, also known as MPEG-4 part 10, is a video compression standard that provides high-quality video without substantially increasing file size.) Video files of varying formats and filename extensions can be H.264 compliant.

Media files in other formats can be played back in earlier versions of Adobe Reader. However, users must install the appropriate application (such as QuickTime or Windows Media Player) to play the multimedia.

Another way to add multimedia is by entering a URL that refers to a video file or streaming media. Three types of URLs can be used: RTMP, HTTP, and HTTPS. On HTTP and HTTPS servers, H.264-compliant MOV and MP4 files are supported.“




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