How to lock the download files on Wordpress. I am having a ebook site. Most of the files that people download are in pdf format. I want to add password to that. I had seen many people are copying my link and they are pasting on their site. Some of them are just uploading it. If the file is locked then the user who is downloading will have to contact me for the password. I had tried doing this through winrar. But I need a more effective way. So that no one can access my links.
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