Примеры

                public void DrawFlippedText(Graphics gr, Font the_font, Brush the_brush, 
                    int x, int y, string txt, bool flip_x, bool flip_y)
                {
                    // Save the current graphics state.
                    GraphicsState state = gr.Save();
                
                    // Set up the transformation.
                    int scale_x = (flip_x ? -1 : 1);
                    int scale_y = (flip_y ? -1 : 1);
                    gr.ResetTransform();
                    gr.ScaleTransform(scale_x, scale_y);
                
                    // Figure out where to draw.
                    SizeF txt_size = gr.MeasureString(txt, the_font);
                    if (flip_x)
                    {
                        x = (int)(-x - txt_size.Width);
                    }
                    if (flip_y)
                    {
                        y = (int)(-y - txt_size.Height);
                    }
                
                    // Draw.
                    gr.DrawString(txt, the_font, the_brush, x, y);
                
                    // Restore the original graphics state.
                    gr.Restore(state);
                
                }
                
                private void Form1_Paint(object sender, PaintEventArgs e)
                {
                    using (Font the_font = new Font("Comic Sans MS", 20))
                    {
                
                        DrawFlippedText(e.Graphics, the_font, Brushes.Red, 10, 10, "Flip X", true, false);
                        DrawFlippedText(e.Graphics, the_font, Brushes.Green, 10, 100, "Flip Y", false, true);
                        DrawFlippedText(e.Graphics, the_font, Brushes.Blue, 10, 200, "Flip XY", true, true);
                
                        // Optional: Draw boxes around the strings.
                        SizeF txt_size;
                
                        txt_size = e.Graphics.MeasureString("Flip X", the_font);
                        e.Graphics.DrawRectangle(Pens.Red, 10, 10, txt_size.Width, txt_size.Height);
                
                        txt_size = e.Graphics.MeasureString("Flip Y", the_font);
                        e.Graphics.DrawRectangle(Pens.Red, 10, 100, txt_size.Width, txt_size.Height);
                
                        txt_size = e.Graphics.MeasureString("Flip XX", the_font);
                        e.Graphics.DrawRectangle(Pens.Red, 10, 200, txt_size.Width, txt_size.Height);
                    }
                }