The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
.NET PDF framework is a high-performance and comprehensive library used to create, read, merge, split, secure, edit, view, and review PDF files in C#/VB.NET.
In the HTMLUI control, we expose all the HTML elements, their positions, properties, methods and events. With these, it is possible to handle end user actions and change according to it in the HTML document.
However, I am afraid, HTMLUI will not be able to edit the HTML document on it, in the design view itself. We are yet to include some additional features that would make the implementation of an editor on top of HTMLUI easier, based on your extensive feedback. I regret for the inconvenience, as I was not able to promise you a specific time frame to get this feature included in the control.
Thanks for your interest in the Syncfusion products.