Aldiko can handle both ePub and PDF using Adobe DRM. As long as your device is authorized with ADE. Inside the app itself you just add your email/password with ADE and then can import your ADE files to read them through the App.
I've successfully downloaded encrypted ADE files via Dropbox into Aldiko and read them.
You can just go to the
Aldiko download page on their website and use the email option on the right side. You don't need a valid email address because the same error message always appears when using this box which allows you to direct download the app from the page itself.
Once the app is installed, go to general settings and tap Adobe DRM and add your Adobe ID to verify device and your good to go whether you sideload and then import your books through a service like dropbox or directly via USB onto SD card.