Adobe Acrobat XI Pro-Download Software link and serial are sent within 10 minutes of sale Lifetime activation guarantee Works on Windows 7, Windows 8, 8.1 and Windows 10! This is NOT a cloud based program and does not have any subscription or recurring fees.. Its a one time purchase for lifetime activation. Medialess download file. You will receive a link and serial number within 15 minutes of purchase via email from our server. You may save setup file to disk to maintain your own backup copy.