Is there an admin log-in & reader log-in for Acrobat.com?

I would like to upload PDFs to the cloud via the Acrobat Reader. These PDFs will be viewed by a number of people on their iPads.

I found that the people viewing could use the same log-in, but if one deletes a PDF then that PDF is deleted from all devices because it's stored on the cloud. The PDFs are too large to email and that's why I'm using the cloud.

Is there an admin log-in that I could use to upload PDFs and delete old ones when necessary and is there a 'reader' log-in for the rest of staff that would only give them reading privileges?

Do you have any other suggestions for me?

Thanks so much.