It is possible to adapt the seo with microdata without modules. With simply meta itemprop you can add the differents item you need. They are a lot of ressources in the web.
Post automatically merged:
For opengraph it is simply to add in prestashop, in the html
Fast, easy and automatic, this module allows you to add and customize Open Graph and schema.org structured data in JSON-LD format. You will improve the visibility and positioning of your website in all search engines, benefiting your SEO.