Adobe ACROBAT READER 7.0 Manual page 19

New features overview
As with earlier versions of Adobe Reader, the free Adobe Reader 7.0 software allows you
to open and read any PDF document and fill in PDF forms. But Adobe Reader 7.0 also
offers significant new features and enhancements that greatly extend the flexibility of
Adobe PDF documents. If the creator of an Adobe PDF document has assigned it
additional usage rights, more tools and features are available to users of Adobe Reader,
allowing you to save form data, sign documents, participate in email and browser-based
document reviews, and attach PDF and non-PDF files to a PDF document. If you open a
document that has these additional usage rights, a Document Message Bar displays the
additional tools required to work with the document.
Language support has been extended, a new autosave feature guards against losing your
work in case of a power failure, and new accessibility features make Reader even easier to
use for motor- and vision-impaired users. Depending on your preference settings, Adobe
Reader can automatically download updates in the background, even while other web
transactions are occurring.