Print Direct from Web application to local printer

My Requirement is to print invoices in pdf direct to local printer from web application developed in .net mvc framework.

I need to do exact like shipstation is doing with SHIPSTATION CONNECT

SHIPSTATION CONNECT

Does it use process like

REMOTE PRINTER SHARING CODEPROJECT

or using WMI library to share printer remotely.

Any expert thought will help me and my programmer to build the solution.I am not expecting code or spoon feeding but like to know the process and way to start on this in right direction.

Thanks in advance for the help!

regards