Fail when doing it 2 times on a same image.

FuckThatShit.cs

// Based on : http://www.codeproject.com/Articles/2941/Resizing-a-Photographic-image-with-GDI-for-NET
private static void ScaleAndSaveImage(ImageResizeConfiguration config)
{
	using (var fileStream = new FileStream(config.FilePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
	using (var image = Image.FromStream(fileStream))
	{
		var sourceWidth = image.Width;
		var sourceHeight = image.Height;

		var destX = 0;
		var destY = 0;

		float nPercent;

		var nPercentW = ((float) config.Width/sourceWidth);
		var nPercentH = ((float) config.Height/sourceHeight);

		if (nPercentH < nPercentW)
		{
			nPercent = nPercentH;
			destX = Convert.ToInt16((config.Width - (sourceWidth*nPercent))/2);
		}
		else
		{
			nPercent = nPercentW;
			destY = Convert.ToInt16((config.Height - (sourceHeight*nPercent))/2);
		}

		var destWidth = (int) (sourceWidth*nPercent);
		var destHeight = (int) (sourceHeight*nPercent);

		using (var newImage = new Bitmap(config.Width, config.Height, PixelFormat.Format24bppRgb))
		{
			newImage.SetResolution(image.HorizontalResolution, image.VerticalResolution);

			using (var grPhoto = Graphics.FromImage(newImage))
			{
				grPhoto.Clear(Color.FromName(config.BackgroundColorName));
				grPhoto.InterpolationMode = InterpolationMode.HighQualityBicubic;

				grPhoto.DrawImage(image,
					new Rectangle(destX, destY, destWidth, destHeight),
					new Rectangle(0, 0, sourceWidth, sourceHeight),
					GraphicsUnit.Pixel);
			}

			var fileName = config.FileName.Substring(0,config.FileName.Length - config.Extension.Length);

			fileName = string.Format("{0}.{1}", fileName, config.TargetFormatText);
			fileName = Path.Combine(config.TargetDirectory, fileName);

			newImage.Save(fileName, config.TargetFormat);
		}
	}
}