Creating an Application Pack for Adobe Acrobat Reader requires a specific distribution package that you can download here: https://get.adobe.com/reader/enterprise/
Complete the form, and save the installation package to a folder named Adobe. You can then select the Adobe folder and the exe file within it when you create your Adobe Reader Application Pack using the New Application Pack Wizard, or when downloading the Adobe Reader Application Pack in the SmartDeploy Console.
Note: The silent installation arguments for this Adobe Reader package are: /sAll /rs