How to resize and save PNG or Jpeg Image file ?

The PictureBox control in C# is a visual element that allows you to display images within your application's user interface. It's a versatile tool for displaying images, icons, graphics, and other visual content, and it can be easily manipulated using properties to control its size, position, image source, and other characteristics. You can use it to create image galleries, display user profile pictures, or integrate any image-based content into your application. 

I tried to change image file with PictureBox control. Following is the example to convert image size. 

private void copy_to_resized_png(string tar, string src, int w, int h)
{
  Image imgInput = Image.FromFile(src);
  Bitmap bitmapResized = new Bitmap( imgInput, w, h);

  // in case that you need to save as jpeg format
  // just change
  // ImageFormat.Png to ImageFormat.Jpeg
  bitmapResized.Save(tar, ImageFormat.Bmp);

  imgInput.Dispose();
  bitmapResized.Dispose();
}

You can call above function as following:

copy_to_resized_png( "c:\tmp2_mask1.png", "c:\widget_104_mask2_v2.png", w, h);