Features
Three things a fixed-inventory stock library cannot do, and one it can but usually does badly.
You earn from it
Ask for a picture the catalogue does not have. It is made, listed, and you earn a share of every licence of it, for as long as it sells.
Made to order
When a search finds nothing, the catalogue offers to make it. About two minutes later it is listed, licensable and yours.
Search that understands
Ask for “stressed” and find the picture whose prompt says “pressing the bridge of their nose with eyes shut”.
Licensing and delivery
Two licences, flat prices, a perpetual grant and a download link that is yours to come back to.