It is rare to get a request for a hard-copy firm overview any more. Almost everyone who asks for one wants it sent via email.
The reasons for this shift aren’t hard to understand. The ability to view PDFs is now pretty much ubiquitous, and receiving information in this format enables people to get it faster, and easily pass it along to others in their organization.
There are also some clear benefits to this situation for brochure senders. It saves on printing and postage costs. It eliminates the need to store pre-printed brochures, and the waste that accompanies that practice. It makes it easy for you to customize materials on the fly. And it’s also better for the environment, assuming that the recipient doesn’t just turn around and print out their own copies.