The PDF is DRM protected so you have to use a registered copy (free) Adobe Digital Editions, or some other compatible reader to open it. See this thread for more info: https://forumserver.twoplustwo.com/3...update-529191/
The PDF is DRM protected so you have to use a registered copy (free) Adobe Digital Editions, or some other compatible reader to open it. See this thread for more info: https://forumserver.twoplustwo.com/3...update-529191/