Securely View PDF's using Acrobat Reader

Hello,

I am looking for a safe and secure way to let our customers view our PDF files. Our customers like using Adobe Reader for PDF's, however our PDF's contain sensitive information that should not be downloaded and shared. Our customers access our website to view the PDF's, but we cannot have them download the PDF file. Is there any way for us to allow them to view the PDF file in a browser and also prevent them from downloading and distributing a copy of it?

Thank you!