Reader XI introduced a button to export PDFs to Microsoft Word or Excel. Note: This required an Adobe online services subscription or a limited number of free tries.
Since it no longer receives updates, any new security holes discovered in the software remain unpatched, making your system vulnerable to "zero-day" attacks via malicious PDF files. adobe reader11
Reader XI supported "Portfolios"—a container file that could hold multiple PDFs, Word docs, and multimedia files in one interface, allowing users to navigate complex project folders easily. Reader XI introduced a button to export PDFs
Because version 11 is obsolete, Adobe strongly recommends upgrading to Acrobat Reader (formerly Reader DC) for the following reasons: Deploying Adobe Reader 11 to the Enterprise via GPO and multimedia files in one interface