Now go lock that first file and start growing your subscribers! Have you tried any of these plugins? Let me know in the comments which one worked for your site.
EDD is a full-featured digital eCommerce plugin. Even for free downloads, you can force users to provide an email at checkout. wordpress plugin to require email for a download
MailOptin includes a feature called that protects any download link or even a whole page. Now go lock that first file and start
Now, when visitors click "download" on that page, they see a form. No email = no file. If you require an email, you must comply with privacy laws. you must comply with privacy laws.