Download all images in all pages add to console in your site.

downloadImage.js

jQuery('.galleryblock>a').each((ind , value) => {
	console.log(jQuery(value).prop('href'));
	var link = document.createElement('a');
	link.href = jQuery(value).prop('href');
	link.download = link.href.substring(link.href.lastIndexOf('/')+1);;
	document.body.appendChild(link);
	link.click();
	document.body.removeChild(link);
});