Need my Image picturebox resizable

Hi,

I have a picturebox on my form. When I printpreview my image its shows but in original size. I need to resizable it any time I want. Then how can I do to make this image resizable on printpreview?

 

private void printDocument1_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
{
      e.Graphics.DrawImage(picBx.Image, 600, 50);
} 

 

Thanx,

Israel.