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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 that you can correct the post.


Video properties


More information

Maximum file size

100 GB



up to 4K



Allowed extensions: jpeg, png

Maximum file size: 2 MB

You can customize the video thumbnail in Publisher.

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 short, 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.

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