{

System.Drawing.Image ig = System.Drawing.Image.FromFile(sourcePath);

int towidth = width;

int toheight = height;

int x = 0;

int y = 0;

int ow = ig.Width;

int oh = ig.Height;

if (height == 0)

{

toheight = oh * width / ow;

}

else if (width == 0)

{

towidth = ow * height / oh;

}

else

{

if ((double)ig.Width / (double)ig.Height > (double)towidth / (double)toheight)

{

oh = ig.Height;

ow = ig.Height * towidth / toheight;

y = 0;

x = (ig.Width - ow) / 2;

 

}

else

{

ow = ig.Width;

oh = ig.Width * height / towidth;

x = 0;

y = (ig.Height - oh) / 2;

}

}

System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight);

System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap);

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

g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;

g.Clear(System.Drawing.Color.Transparent);

g.DrawImage(ig, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel);

try

{

bitmap.Save(newPath, System.Drawing.Imaging.ImageFormat.Jpeg);

}

catch (Exception ex)

{

throw ex;

}

finally

{

ig.Dispose();

bitmap.Dispose();

g.Dispose();

}

 

}