HTTP linking to PDF documents
Reader now allows you to open PDFs linked through a website directly without having to first download the file.
Comment (pop-up note) view for Markups
Reader helps you see all the elements in your rich PDFs by adding support for viewing comments attached to highlights, strike-out, and underlines. For example, a comment added with the desktop Reader or Acrobat to highlighted text is now visible in Reader Mobile.
Secure file storage
We now cache files downloaded from Acrobat.com in a private storage area accessible only by Reader. You can control whether files are stored in a public or private area by changing the options in Menu > Settings.
Performance improvements
Changes to image handling have improved Reader's performance and rendering speed of documents.
Bug fixes and security updates
We've been listening to your forum suggestions and have improved features across the product. Security is enhanced with every release.