Adobe Reader software is the global standard for electronic document sharing. It is the only PDF file viewer that can open and interact with all PDF documents. Use Adobe Reader to view, search, digitally sign, verify, print, and collaborate on Adobe PDF files.

Note: To get Adobe Reader XI 11.0.21 you can either download Adobe Reader XI 11.0.00 (Adobe Reader XI 11.0.00 download link) and during the installation choose to install the latest updates - this is the fastest - or download Adobe Reader XI 11.0.00 (Adobe Reader XI 11.0.00 download link) and then download the 11.0.21 Upgrade Patch (Patch to 11.0.21 download link), which you just open and it installs itself. Learn more.