I am supporting my user base through a Mobile Device management system and want to push out the APK to all my users base (without having to go to the Play Store). Where can I download a safe and updated version of the APK?
You can download an APK file for Acrobat Reader for Android from the official Adobe Acrobat Reader download page.
IMPORTANT: Please open the above URL in a web browser on a Windows or Mac computer (not an Android tablet/phone). Otherwise, the page will automatically redirect you to Google Play. (Then, you will not have a chance to download an APK file.)
(Click the image above to enlarge)
Hope this helps.