iTextSharp.text.Image.GetImageRotation C# (CSharp) Méthode

        public float GetImageRotation()
        {
            float rot = (float) ((rotationRadians - initialRotation) % (2.0 * Math.PI));
            if (rot < 0) {
                rot += (float)(2.0 * Math.PI);
            }
            return rot;
        }