By default, a contact cannot publish photos or videos in your Joomeo space. However, by checking the box "Authorize to upload photos" for the contact in question in the album edit window, s/he will have the right to add as many photos as s/he wishes to this album.
You can also modify the default parameter by going to "My preferences", then "AUTHORIZATIONS".
Maybe now is a good time to take a few minutes to see the main functions offered by Joomeo. We have prepared a few tutorials and videos on this topic for you: