WooCommerce make it easy to sell all kinds of digital products. For certain products, you want to attach user guides and other files to product pages. Documents for WooCommerce Plugin can help. It lets you display downloadable items on your product pages.
Thanks to this plugin, you can add documents to products in the back-end to have them displayed on the frontend under a separate tab. It can be used to share all kinds of documents, including manuals and size charts.