EVO HTML to PDF Converter can be configured to automatically create a hierarchy of bookmarks in PDF document based on H1 to H6 head tags found in HTML document by simply turning on the AutoBookmarksEnabled option.
The following options are available in this demo:

- HTML Page URL or Local File to Convert. The URL of the HTML page to convert must be accessible from the computer where the converter runs. If the page requires authentication or if you are using a proxy server to access Internet then you have to set the converter properties accordingly as described in documentation
- Create a Hierarchy of Bookmarks from H1 to H6 Tags. Using this option you can enable or disable the creation of an hierarchy of bookmarks from the H1 to H6 tags found in the converted HTML document