Hello,
We understand that you want to develop a PHP app exactly same as "idrsolutions" which will convert PDF to HTML5 files. User can upload the PDF and convert the same into HTML.
We are the team of UI and PHP developers. Our skills include HTML5, CSS3, jquery/javascript, PHP/Mysql.
We can provide you a developer who has got good communication skills and can create this PHP app for you.
Let me know if you want to discuss further. We prefer Skype/Im for faster communication.
Best! Ruchi