Hi,

I moved your Vote to the first request for a PDF viewer so we can avoid duplicates and have better tracking: https://feedback.telerik.com/blazor/1404008-my-staff-loved-your-radpdfviewer-and-radpdfprocessing-for-silverlight-i-m-hoping-to-see-these-controls-or-the-same-feature-sets-become-available-for-client-side-blazor. Please Follow that instead.

As for using existing widgets - you can try using the Kendo UI for jQuery widgets as explained here: https://docs.telerik.com/blazor-ui/knowledge-base/jquery-kendo-in-blazor. I am not aware of a way to use helpers from ASP.NET Core in Blazor at the moment. Even if there was, they would be likely to experience a lot of issues because of the drastically different application model (e.g., lack of defined controllers) and in the case of our components - the ASP.NET Core helpers boil down to the Kendo UI for jQuery widgets anyway.

Regards,
Marin Bratanov
Progress Telerik