Yep, bottom feed only. BUT since the lower blade holder is a separate piece you can actually feed the blade up through the wood right at the front edge of the table - that's what that long slot is for. Of course, then you have to slide everything back and get the blade holder into it's spot. I've not had to do this but it's nice to know there is an option if needed.
And you can get 3-packs of the lower blade holders on Amazon for about $24 so you can have a set of blades loaded and ready to go making blade changes extremely fast. Once again, not something I'm doing, just nice to know it's available.