Can I delete photos after uploading them?

Yes. Organisers can remove individual photos or videos from a gallery at any time, and deleting a photo also removes it from face-search results.

You can also delete an entire event and all of its data.

Deletion applies in both directions at once: the file leaves the gallery and its face embedding leaves the search index, so a guest who ran a selfie search a minute earlier will not see it again. Deleting the whole event removes the photos, the embeddings and the guest access records together.