can I save acrobat cloud PDF files back to windows phone 8.1?

I've backed up my (sandboxed) PDF files from Acrobat Reader on my Windows Phone 8.1 to Acrobat.com (Cloud).

How Can I restore (save) them back to the phone?

I understand I can view them in/from the cloud but how to get them back on the phone locally?

-It sure would be nice to be able to copy them to the Office Hub as well.

Seems Acrobat Reader (Windows Phone 8.1 app) allows download from OneDrive but not upload/ back-up to OneDrive, why?

Why is the no option / context menu item allowing "save to phone" when tap/hold on cloud stored file, or while viewing the file itself.

I see no option to download to phone.

Seems the only work-around I can think of is to NOT use the Windows Phone Acrobat Reader App; but instead log into Acrobat.com (using the phones browser)

and download the file(s) that way.