How to see docs on all devices

This is probably such a basic question. But, I am brand new to Office 365 and Adobe DC. I am used to having to email myself anything I want to read/review away from my office desktop computer. How do I make the PDF's that I can see on my desktop at work, automatically viewabe to the Cloud, thereby viewable on other computers/devices? I had this crazy idea that it would all sync without me doing anything. Thanks for any help you can offer.