Get free version from here http://wordpress.org/extend/plugins/download-manager/
Subscribe to Download plugin will help you to protect your download link using email subscription option.Whenever the visitors put down their e-mail address, download links are directly sent to their inbox .
Subscribe to Download plugin Features:
- Email verification
- Multiple CSS3 templates from subscription box will be compatible with all browsers
- Tinymce button for inserting short-code
- Full feature admin option to review e-mail addresses and daily subscriptions
- Exports email list in various forms and import to popular mass mailing services like mail-chimp, aweber, campaign-monitor and many other
- Manages all download links from a single location.
- Add additional custom field like first name and last name (coming with next update)
Who needs Subscribe to Download plugin:
Subscribe to download is a perfect WordPress plugin for you if you want to build a free resource download directory or want to share anything downloadable from your blog like you own design, tutorial or anything. Subscribe to Download can increase your subscriber magically.
Subscribe to Download Front-end template preview: