Resize Images using C#

public System.Drawing.Image ResizeImage(string OriginalFile, string NewFile, int NewWidth, int MaxHeight, bool OnlyResizeIfWider)
        {
            System.Drawing.Image FullsizeImage = System.Drawing.Image.FromFile(OriginalFile);

            // Prevent using images internal thumbnail
            FullsizeImage.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipNone);
            FullsizeImage.RotateFlip(System.Drawing.RotateFlipType.Rotate180FlipNone);

            if (OnlyResizeIfWider)
            {
                if (FullsizeImage.Width <= NewWidth)
                {
                    NewWidth = FullsizeImage.Width;
                }
            }

            int NewHeight = FullsizeImage.Height * NewWidth / FullsizeImage.Width;
            if (NewHeight > MaxHeight)
            {
                // Resize with height instead
                NewWidth = FullsizeImage.Width * MaxHeight / FullsizeImage.Height;
                NewHeight = MaxHeight;
            }

            System.Drawing.Image NewImage = FullsizeImage.GetThumbnailImage(NewWidth, NewHeight, null, IntPtr.Zero);

            // Clear handle to original file so that we can overwrite it if necessary
            FullsizeImage.Dispose();

            // Save resized picture
            return NewImage;
            //NewImage.Save(NewFile);
        }

        public static void SaveJpeg(string path, System.Drawing.Image img, int quality)
        {
            if (quality < 0 || quality > 100)
                throw new ArgumentOutOfRangeException(quality must be between 0 and 100.);


            // Encoder parameter for image quality
            EncoderParameter qualityParam =
                new EncoderParameter(System.Drawing.Imaging.Encoder.Quality, quality);
            // Jpeg image codec
            ImageCodecInfo jpegCodec = GetEncoderInfo(image/jpeg);

            EncoderParameters encoderParams = new EncoderParameters(1);
            encoderParams.Param[0] = qualityParam;

            img.Save(path, jpegCodec, encoderParams);
        }

private static ImageCodecInfo GetEncoderInfo(string mimeType)
        {
            // Get image codecs for all image formats
            ImageCodecInfo[] codecs = ImageCodecInfo.GetImageEncoders();

            // Find the correct image codec
            for (int i = 0; i < codecs.Length; i++)
                if (codecs[i].MimeType == mimeType)
                    return codecs[i];
            return null;
        }