Winnovative HTML to PDF Converter allows you to define a hierarchy of bookmarks directly in HTML using a set of special attributes. You can set the attribute data-bookmark-enabled on a HTML element to enable the creation a bookmark for that element in PDF. Additionally you can specify the bookmark level in hierarchy with data-bookmark-level attribute and the bookmark title with data-bookmark-text attribute.

At the top of the demo you can choose the HTML document to convert which can be: