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.
VSVasugi Sivajothi Syncfusion Team March 30, 2021 11:10 AM UTC
Hi Nicolas,
In our PDF Viewer, we do not have support to set the annotation behind the text. However, we can change the opacity level of annotation. Please refer to the below code snippet and sample,