We have a back end PHP system that hooks up to our shopify front end.
Users can purchase an ebook from the front end and it gives them access to epub on the back end. We chose not to give away the ebooks in pdf because they could easily be downloaded and shared.
We are having problems with Epub performing slow, crunching text, and a few other things.
I need an EXPERT with epub to help me fix this. Please only apply if you have massive amounts of experience with Epub. This is very important.
Are you an EXPERT and experienced with Epub reader and can navigate a PHP site?