How to resizeImage and save using c#.Net

C# Code:

private Bitmap SetResizeImage(string strImg, string FileName, int Imagewidth, int ImageHeight)

{

    int nnx = Imagewidth;

    int nny = ImageHeight;

    System.Drawing.Image img = System.Drawing.Image.FromFile(strImg);

    Bitmap cpy = null;

    cpy = new Bitmap(nnx, nny);

    using (Graphics gr = Graphics.FromImage(cpy))

    {

        gr.Clear(Color.Transparent);

        gr.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High;

        gr.DrawImage(img, new Rectangle(0, 0, nnx, nny), new Rectangle(0, 0, img.Width, img.Height), GraphicsUnit.Pixel);

    }

   return cpy;

}

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Call method through –

string ImagePath ="D:\\images\\1.png";

    string Filename = Path.GetFileNameWithoutExtension(ImagePath); //get filename from imagepath

    string Extention = Path.GetExtension(ImagePath); //get fileextention from imagepath

    int ImageWidth = 100; //put your custom image width size as you like

    int ImageHeight = 100; //put your custom image height size as you like

    Bitmap image=SetResizeImage(ImagePath, Filename, ImageWidth, ImageHeight); // here call resize method

    image.Save(Application.StartupPath + "\\" + Filename+Extention); //save resized image to startuppath