WP Download Manager - Convertkit

Integrate your Download Manager with ConvertKit using this add-on. This add-on is integrated with Download Manager's Email Lock feature. When a user downloads a file using their email address, the ConvertKit add-on lets your user automatically subscribe to a selected ConvertKit form.

You can use a global form for all of your packages/downloads or use package specific form. ConvertKit is a great tool for email marketers. Download Manager integration with ConvertKit makes your email marketing process more powerful.