Making a PCB for the first time

I have laid out my circuit as if I were looking down at it in the PCB view and have made all of my necessary connections. Naturally I want all of the PCB traces on the bottom of the board so I can solder my parts in place. My question is when I send my files to a board maker, how do they know which side of the board I want them to make the traces? I need a mirror image on the bottom of what I’ve made in the PCB view.

Thanks
Eric

Select the corner of the PCB, and in Inspector change it to Single Side. You can also select traces and change them to bottom - orange traces are bottom, yellow is top -.

You can check the gerbers with free Gerbv. Make sure it’s 100% correct before you send it to manufacture because you are doing engineering.

Ohhhh.

Cool thanks for the reply