Hi Brett McKinney,
The Document Editor includes a 'created' event that is triggered during the initial loading process. This event can be utilized to disable toolbar items upon loading. Kindly refer to the documentation and attached sample for your reference.
Sample - https://stackblitz.com/edit/95b6w2mr-zqbsrtbb?file=index.ts
Documentation - https://ej2.syncfusion.com/documentation/document-editor/how-to/customize-tool-bar
Note: Custom toolbar items can be disabled; however, default items will remain unaffected. If disabled, they will be re-enabled after a selection change.
Regards,
Mohammed Affan C