Drawing a Rotated Text to an Image in C#

Question

I\'m using the the drawstring method of Graphics class to draw a String on Image.

  g.DrawString(mytext, font, brush, 0, 0);

I\'m trying to

Answer 1

before g.DrawString(mytext, font, brush, 0, 0); use g.RotateTransform(45);

Answer 2

It's not enough to just RotateTransform or TranslateTranform if you want to center the text. You need to offset the starting point of the text, too, by measuring it:

Bitmap bmp = new Bitmap(pictureBox1.Image);
using (Graphics g = Graphics.FromImage(bmp)) {
  g.TranslateTransform(bmp.Width / 2, bmp.Height / 2);
  g.RotateTransform(30);
  SizeF textSize = g.MeasureString("hi", font);
  g.DrawString("hi", font, Brushes.Red, -(textSize.Width / 2), -(textSize.Height / 2));
}

From How to rotate Text in GDI+?