Partially off topic: does anybody know of a hosted solution that turns a pdf into an html page, and hosts the output html (optionally, also hosts the pdf, with a downloadable link).
https://mozilla.github.io/pdf.js/ would probably be what you would need to build your own. I think you can also use just Google drive to make something like this.
Maybe this is too obvious (I assume you've already rejected it as an option), but depending on how desperate/minimum-viable-product you are: Google Drive, Dropbox, etc. offer PDF preview functionality.
Not sure of more straight forward hosting options