The following media formats can be uploaded to your embed signage account:

Images
(.jpg, .png, .gif)
Video (.mp4, mpeg, .avi, .mov, .wmv, .webm, .flv)
Audio (.mp3, .wav, .oga)
Other (.html, .swf, .otf, .ttf) 

A list of file size recommendations can be found here.

Watch how to Upload Media

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