public function downAppend($destPath)
{
$otherImage = new SimpleImage($destPath);
$down = $otherImage->loadSourceIntoGD();
$source = $this->loadSourceIntoGD();
$product = imagecreatetruecolor($this->sourceImageWidth, $this->sourceImageHeight + $otherImage->getHeight());
imagecopy($product, $source, 0, 0, 0, 0, $this->sourceImageWidth, $this->sourceImageHeight);
imagecopy($product, $down, 0, $this->sourceImageHeight, 0, 0, $otherImage->getWidth(), $otherImage->getHeight());
imagejpeg($product, $this->sourcePath, 90);
imagedestroy($product);
imagedestroy($source);
imagedestroy($down);
unset($otherImage);
return true;
}
