HTML2PDF : HTML2PDF is a HTML to PDF converter written in PHP.
It allows the conversion of valid HTML 4.01 in PDF format, and is distributed under OSL.
jsPDF : A library to generate PDFs in client-side JavaScript.
Alpaca : Given a web API, Generate client libraries in node, php, python, ruby
jsfx : This is a javascript library (with frontend) for sound effect generation.
TCPDF is a FLOSS PHP class for generating PDF documents.
