Vitrium’s secured content are currently not compatible with eBook readers such as the Kindle, Nook, or Sony eReader. Many of these readers do not support Adobe’s JavaScript functionality or they run proprietary software which would require extensive development by the vendor.

However, if these eBooks have a browser available, the secured web link (Web Viewer URL link) will work instead.

The best way to unlock a secured PDF file is to use a desktop or a laptop computer and opening it using Adobe Reader or Acrobat Pro or FoxIt Reader.