Automatic sitecore image compression. First install this nuget package: Run: Install-Package nQuant Then add to your pipeline: <getMediaStream> <processor type="Sitecore.Resources.Media.ThumbnailProcessor, Sitecore.Kernel" /> <processor type="Sitecore.Resources.Media.ResizeProcessor, Sitecore.Kernel" /> <processor type="Sitecore.Resources.Media.…

gistfile1.cs

 public class ImageCompressionProcessor
    {
        public void Process(GetMediaStreamPipelineArgs args)
        {

            MediaStream outputStream = args.OutputStream;
            if (outputStream == null)
                return;
            var bitmap = new Bitmap(Image.FromStream(outputStream.Stream));

            var memoryStream = new MemoryStream();
            var quantizer = new WuQuantizer();

                using (var quantized = quantizer.QuantizeImage(bitmap))
                {
                    quantized.Save(memoryStream, ImageFormat.Jpeg);
                }

            args.OutputStream = new MediaStream(memoryStream, "jpg",args.MediaData.MediaItem);
        }
    }

To me this looks like a lossy optimization. Know of any .NET technologies that can be used for lossless?