Dec 14, · Dompdf. Dompdf is an HTML to PDF converter. At its heart, dompdf is (mostly) a CSS compliant HTML layout and rendering engine written in PHP. It is a style-driven renderer: it will download and read external stylesheets, inline style tags, and the style attributes of individual HTML elements. PHP library for webpage or HTML to PDF conversion. We have created a PHP library that can handle the full functionality of our API. It's a class that lets you use all the options and functionality easily and has built in exception handling. Aug 30, · Dompdf is a PHP library that provides a simple way to convert HTML to PDF file. Using Dompdf library you can easily generate PDF from HTML page in PHP. The example script will help you to implement PDF generation functionality in the web application and make it simple to convert HTML to PDF in PHP with Dompdf. Dompdf Installation & Setup.