A plugin for easy and safely distribute epub3 books for DRM reading – using EpubSystems Ereading applications. Do not upload your digital books into your website. sell them as virtual products and let us do the rest. After installing the plugin, follow the instructions that were sent to you when you opened a publisher account with epubsystems.com The eBooks that you sell will be delivered to your client’s reading applications. The plugin is using woocommerce hooks to communicated with EpubSystems servers and preform the eBooks delivery to your client. Contact us on epubsystems.com for more information.