Is there a way to connect my fax machine to a computer and manage it?

I have a fax machine, a land line and a computer. My fax can be connected through usb since it also prints and copies. I am looking to send faxes through my computer using the machine (so that i dont have to register at myfax or so) . Such as pdf documents. if there is a program to do that please let me know, something that could send to multiple numbers would be even more helpful