MozJpegSharp 2.1.12

MozJpegSharp (.NET wrapper for MozJPEG)

MozJPEG reduces file sizes of JPEG images while retaining quality and compatibility with the vast majority of the world's deployed decoders.

This library provides .NET wrappers for MozJPEG, allowing you to use it from any .NET language, such as C#.

We also provide precompiled binaries of MozJPEG for Windows (x86/x64), Linux x64 and macOS. On these platforms you just need to install the package MozJpegSharp to start producing smaller JPEGs.

Release Notes v2.1.12 (from 1.0.27)

• Update MozJPEG to version 2021-07-21
• Add support for SkiaSharp
• Split GDI+ support in second package
• Add support for OS-installed mozjpeg(/libturbojpeg)
• Restructure packages for better cross platform experience
• Improve build process

Upgrading from v1:

• if you used methods with System.Drawing.Bitmap in their signature, please also install the MozJpegSharp.GdiPlus package, in addition to MozJpegSharp

Package Overview

This project provides multiple NuGet packages:

Usage

Recompression using just MozJpegSharp:

var inFile = "in.jpg";
var outFile = "out.jpg";
var inBytes = await File.ReadAllBytesAsync(inFile);
var compressed = MozJpeg.Recompress(inBytes.AsSpan(), quality: 80);
await File.WriteAllBytesAsync(outFile, compressed);

Example usage for MozJpegSharp.GdiPlus:

var inFile = "in.jpg"; // does not need to be jpg
var outFile = "out.jpg";
using var bmp = new Bitmap(file);
using var tjc = new MozJpegSharp.TJCompressor();
var compressed = tjc.Compress(bmp, MozJpegSharp.TJSubsamplingOption.Chrominance420, 75, MozJpegSharp.TJFlags.None);
File.WriteAllBytes(outFile, compressed);