How can I change a pdf into html encrypted?

I need to change a word document or a pdf file from my computer into an html encrypted form. How do I do that? Is it possible? 

You can import your fillable PDF form to JotForm. Here's how: https://www.jotform.com/adobe-formscentral-alternative/

Please ensure that fields are fillable, otherwise, it won't be converted into a web form.

Let us know if this works for you.