Video thumbnails let people see a quick snapshot of your video. After your video is finished uploading, you'll be able to choose a thumbnail from the three options YouTube automatically generates. To select the one you'd like to use, simply click the thumbnail and click Save changes.
Here's how to change a thumbnail at any time:
- Click your username in the upper right corner.
- Click Video manager
- Click Edit for the corresponding video you'd like to change.
Custom thumbnails: To set custom thumbnails, become a YouTube partner!
