There are a few ways to load and annotate HTML or web pages inside of WebViewer.

Loading HTML directly (dynamic)

You can load HTML pages directly by importing webviewer-html module completely client-side.

This is an addon for WebViewer that allows loading HTML web pages so that HTML page can be annotated.

Load and Annotate HTML

Converting HTML to PDF (static)

You can convert HTML to PDF and provide your users with a consistent appearance of the document looking consistent across the browsers.

Convert HTML to PDF