ePub Licencing Extension for Magento
This extension controls the licencing of individual ePub files to restrict their use to the Purchaser of the file. It provides a simple type of DRM without being overly complex or expensive.
1) Each downloadable product contain ePub file.
2) There is a customer attribute at backend to indicate whether this customer has downloaded ePub file or not.
3) When customer downloaded any ePub file from his account, then customer’s attribute will be updated.
4) The ePub file will be updated with customer’s id representing a specific purchase.
5) The complete extension is built keeping in mind Magento standards