Portable LibJpeg.NET allows you to read and create JPEG images in .NET compatible languages. It's the managed version of original libjpeg library developed by Tom Lane and the Independent JPEG Group (IJG). Supported platforms .NET 4 and higher, Windows 8 and higher, Windows Phone Silverlight 8 and 8.1, Windows Phone 8.1 and higher, Silverlight 5, Xamarin Android, Xamarin iOS (Classic and Unified API). The package also includes an assembly for .NET Core, Standard Library 1.0. Portable Class Library is distributed by Cureos AB.
$ dotnet add package Portable.LibJpeg.NETNo README available.