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 provided sample, custom window fields are not properly initiated which is the cause for the issue. We have modified your sample which can be referred from the below link.
