Yes, it is same in pro too. But pro version have option to add multiple files per package, so you can add all PDFs from different languages in same package and users will be able to download the file in their preferred language.
YOu need to use this http://www.wpdownloadmanager.com/download/user-review-add-on/
List of Template Tags to use with Link/Page Template:
[wpdm_reviews] – will generate the complete review UI
[rating] – will show the average rating for a package
[rating_stars] – will show the rating option for a package with ★ symbols
Sorry, WPML is not applicable in this plugin. If you want to translate the template you can use clone option. You can easily clone any given templates and edit as your own.
The warning showing at the bottom of the list of plugins page is a minor issue (will solve in next update) this won’t cause problem in your functionality.
However 500 Internal Server Error may cause for some other reasons: like corrupted .htaccess file or PHP memory limit.
Provide your url and login information in private, if you want to solve this problem immediately
You only need to delete your free version plugin to upgrade to Pro version. You will not lose your old data. It’s already mentioned in this link WordPress Download Manager Pro installation
