YouTube Publishing
This page contains high-level specifications for scheduling and publishing YouTube posts through Publisher.
If your post does not meet the requirements to publish, Publisher informs you so you can correct the post.
Video
Maximum file size: 100 GB
Resolution: up to 4K
Thumbnail:
Allowed extensions:
jpeg
,png
Maximum file size: 2 MB
If a video meets the following conditions, YouTube automatically uploads the video to the channel as a short:
The video uses a vertical aspect ratio of 9:16 (0.5625).
The video is under 1 minute
To maximize the performance of the video, include #short in both the title and description.
Additional publishing options
Label
Scheduling
Uploading cloud-shared assets directly from cloud storage applications
Custom Thumbnails
The video can be added to multiple playlists
Visibility
Age restriction
Tags
Language
Recording date
License
Category
To learn more, see Content Options in Publisher.