Welcome to Atlassian Community, and thank you for raising this request.
It's not possible to restrict file uploads by extension/ file type in Confluence Cloud. We had a few requests for this in the past, but we, unfortunately, don't have plans to implement it.
Refer to the following closed feature requests and the linked related cases:
My sincere apologies since I know this isn't the answer you were hoping to hear.
Take care, and I hope you have a nice rest of your week.
Shannon | Atlassian Cloud Support
Hi @Bm1115xdo !
You can restrict attachment operations at the space level in addition to the global restrictions linked above - but not directly on a page-by-page basis.
Strategies to get around this could include:
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