You can continue to install and use Adobe Acrobat and Adobe Reader software on Mac OS X 10.6 or 10.7. For the best and most secure experience of Adobe Acrobat and Adobe Reader, we recommend using the software on a supported operating system: OS X 10.8 (Mountain Lion), 10.9 (Mavericks), or 10.10 (Yosemite). Announcement for those of you using Mac OS X 10.6 (Snow Leopard) and 10.7 (Lion): Acrobat and Reader will be ending support for these operating systems after the next quarterly update, expected in May 2015.