To set permission levels for an image, go to setup, and then Asset Management and then Images.

Click on the vertical ellipses on the thumbnail-card of the image you want to restrict/share, and then select “Sharing”.

From there, use the sliders to set your permissions to the desired level for all users, groups, and companies. When you are finished, click "Save".

Sharing Permission Settings:

1. View: This is first level of permission allowing a User to only View the media
   
2. Edit: Allows a User to view and edit the master (or original) file
   
3. Create: A User can view, edit the master file, and create their own templates for this type of media
   
4. Delete: A User can view, edit the master file, create their own templates, and delete this type of media
   
5. Owner: This sets the user as sole owner of the file, with complete to alter settings for that specific file.