static public function setDnpPaper(bd:BitmapData):BitmapData
        {
            var resultPictureSize:Rectangle =  new Rectangle(0, 0, PND_PAPER_SIZE.width - 20 - 30, PND_PAPER_SIZE.height - 20 - 30);

            var sourceRatio:Number = bd.width / bd.height;

            var destRatio:Number = resultPictureSize.width / resultPictureSize.height;

            var matrix:Matrix;

            var ratio:Number;

            if (sourceRatio > destRatio)
            {
                ratio = resultPictureSize.width / bd.width;
            }
            else
            {
                ratio = resultPictureSize.height / bd.height;

            }

            matrix = new Matrix();
            matrix.scale(ratio, ratio);

            var result_bd:BitmapData = new BitmapData(resultPictureSize.width, resultPictureSize.height, false, 0xFFFFFF);

            result_bd.draw(bd, matrix, null, null, null, true);

            var pnd_paper_bd:BitmapData = new BitmapData(PND_PAPER_SIZE.width, PND_PAPER_SIZE.height, false, 0xFFFFFF);

            matrix = new Matrix();

            matrix.tx = 20;
            matrix.ty = 20;

            pnd_paper_bd.draw(result_bd, matrix, null, null, null, true);

            return pnd_paper_bd;

        }