Video Functions : Video Settings : Upload a Thumbnail for a Video
  
Upload a Thumbnail for a Video
Thumbnails provide a quick snapshot of what your video contains. When a video is uploaded, Rev automatically generates a thumbnail image for you.
 
Keep in mind:
The auto-generated thumbnail is the default thumbnail for the video.
If a new thumbnail image is uploaded, the auto-generated thumbnail is discarded and may not be recovered.
 
You may also use the Settings button on the Video Player form to upload a custom thumbnail for the video.
 
*To upload a thumbnail:
1. Navigate to User > Media > My Videos.
2. Click the Video Name > Settings button > Advanced tab > Thumbnail button (+) in the Thumbnail section.
3. Select an image you would like to use from your local hard drive.
a. File types you may use include: .jpg, .png, .gif