1. A method comprising: obtaining a digitized image to be protected by a watermark; specifying a digitized bounding rectangle having known horizontal and vertical dimensions; forming a resized image by resizing the horizontal dimension by a horizontal factor and the vertical dimension by a vertical factor, so that the resized image is a largest replica of said digitized image fitting entirely within the bounding rectangle; and imbedding said watermark into said resized image to form a watermarked image.