A user who has permission to view a collection will be able to view the snapshot documents in the collection using the collections global viewer.
Snapshot documents in the collection will be viewable
even if the user does not have Confluence view permission for the source document
with ‘frozen’ dynamic content for source macros included in the source document
Links in the content will still be subject to the viewer permissions on the destination url.
Confluence permissions for viewer
A user given viewer permission for a collection does not require any Confluence permissions on the Confluence source document to view the snapshot document.
Related pages
User Guide - Snapshot Collections
Snapshot Publishing Guide - Collections