WP Download Manager

WordPress Download Manager is a Files / Documents Management Plugin to manage, track and control file downloads from your WordPress Site. Use Passwords, User Roles to control access to your files, control downloads by speed or by putting a limit on download count per user, block bots or unwanted users or spammers using Captcha Lock or IP Block feature, you may also ask users to agree with your terms and conditions before they download.

Also, you may use WordPress Download Manager as a complete e-Commerce Solution for selling digital products. Simply put a price when you need to sell a digital item. You also may use license ( ex: Simple, Extended, Unlimited ) based prices for a product. Users can directly download free items and when an item has a price user will have to go through cart & checkout. WordPress Download Manager has the easiest checkout option to give the user better experience in purchasing an item and which always increase the probability of successful completion of an order.