Earlier quoted context omitted.
You can export everything in 1-click! It only supports JSON, HTML, CSV for now tho. PDF support will come at one point.
I don't mean any disrespect, but I made an incredibly basic doc - the JSON export is unlikely to be helpful, and the HTML export is essentially broken for a lot of features, such as an equation. I think that getting perfect PDF exports should definitely be up there on the priorities. Might help you hone the document model too.
The more I look at this app the more I'm impressed, though.