Title: Use the Bitmap class's RotateFlip method to easily flip and rotate an image in C#
The Bitmap class's RotateFlip method makes it easy to rotate an image by a multiple of 90 degrees and flip it vertically or horizontally. This example wraps the call to RotateFlip in the following ModifiedBitmap method. It makes a copy of an image, rotates and flips the copy, and returns the result.
// Copy the bitmap, rotate it, and return the result.
private Bitmap ModifiedBitmap(Image original_image,
// Copy the Bitmap.
Bitmap new_bitmap = new Bitmap(original_image);
// Rotate and flip.
// Return the result.
The following code shows how the program calls this method to rotate the image 180 degrees and then flip it horizontally:
private void rad270FlipX_CheckedChanged(object sender, EventArgs e)
picResult.Image = ModifiedBitmap(
After rotating or flipping a Bitmap, you can use its Save method to save the result into a file.
Download the example to experiment with it and to see additional details.