public function tagResizedImageFiles($defaultTagImage)
    {
        // grab the image sizes to create from the config
        $imageSizes = Config::get('lasallecmsfrontend.default_tag_image_image_size');

        // iterate through the sizes to create new image files for each size
        foreach ($imageSizes as $width => $height)
        {
            if (!$this->isFileExist($this->pathFilenameOfResizedImage($defaultTagImage, $width, $height)))
            {
                $this->resize($defaultTagImage, $width, $height);
                $this->resizeAt2x($defaultTagImage, $width, $height);
            }
        }
    }