Spire.PDF for .NET is a versatile PDF library that enables software developers to generate, edit, read and manipulate PDF files within their own .NET applications. This project only contains dlls for .NET core 2.0 and .NET core 3.0. .NET Core itself has limitations in processing images, we recommend you to use the .NET Standard dll which has better performance in this regard. If you truely want to use the dll of .NET Core, please get it here.
$ dotnet add package Spire.PDF.NETCoreNo README available.