如何使用Graphics.RotateTransform旋转JPEG而不剪裁

I need to rotate a JPEG image 90 degrees, and unfortunately the file that results from System.Drawing.Image.RotateFlip is not compatible with my end program. As an alternative, therefore, I am trying to use Graphics.RotateTransform. The current code seems like it should work, but the image gets clipped when it is rotated.I need to rotate a JPEG image 90 degrees, and u