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I'm trying to resize an image while preserving the aspect ratio from the original image so the new image doesn't look squashed. eg: Convert a 150*100 image into a 150*150 image. The extra 50 pixels of the height need to be padded with a white background color. This is the current code I am using. It works well for resizing but changing the aspect ratio of the original image squashes the new image. private void resizeImage(string path, string originalFilename, int width, int height) { Image image = Image.FromFile(path + originalFilename); System.Drawing.Image thumbnail = new Bitmap(width, height); System.Drawing.Graphics graphic = System.Drawing.Graphics.FromImage(thumbnail); graphic.InterpolationMode = InterpolationMode.HighQualityBicubic; graphic.SmoothingMode = SmoothingMode.HighQuality; graphic.PixelOffsetMode = PixelOffsetMode.HighQuality; graphic.CompositingQuality = CompositingQuality.HighQuality; graphic.DrawImage(image, 0, 0, width, height); System.Drawing.Imaging.ImageCodecInfo[] info = ImageCodecInfo.GetImageEncoders(); EncoderParameters encoderParameters; encoderParameters = new EncoderParameters(1); encoderParameters.Param[0] = new EncoderParameter(Encoder.Quality, 100L); thumbnail.Save(path + width + "." + originalFilename, info[1], encoderParameters); } EDIT: I'd like to have the image padded instead of cropped

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