PosterMyWall offers video, which is great for sharing online, and display ads. Free video downloads are available, but they are limited to 20 seconds of play time, and contain a large watermark.
The high resolution video download has no such restriction and will contain no watermark.
Videos can be created in all canvas sizes normally available for images.
The video download costs 14.95 USD.
4K video downloads, great for 4K supporting screens are available for 24.95 USD.