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.
Note: We have already planned your requirement as feature request (Gradient background support for SfButton) for our upcoming Volume 2 2019 release which is scheduled to be rolled out by the end of June 2019. So, you can keep track of these features from the below link.