Short answer: keep student documents in a private bucket, authorize every download in your application, and return a short-lived signed URL. The important choice is where access control lives and how much delivery work your team will own. In an edtech platform, a tenant may store contracts, rec...
Source: [Dev.to](https://dev.to/bramwellvance7953/private-document-downloads-signed-urls-egress-cost-and-provider-trade-offs-110)