Welcome to TraceArt.net
You can choose your adapter and mail me the code. If it hasn't drawen yet, I draw the board and generate the GERBER file. I mail you when your board is ready. After your payment, I mail the project to you.
After that, you can upload it to your favourite PCB manifacturer, choose your pieces, color etc. and get it.
Advantage of Buying the File Instead of Physical Board
If I choose the classical method, I pay for shipping and taxes while receiving the board. At next step shipping from here to your country is very high. All of these costs will be handled by you. Which means extra load for all of us.
And for bulk orders - maybe you want to use the boards as programing adapters- things are being more messy.
After considering these issues, I choose to sell GERBERS, which is a more flexible method.
Copyright and Usage of Files
Once you have the GERBER File, you are free to have your boards as many as you want, and more you are free to sell the physical boards. But you can not resell the files. Especially the high-density boards like QFN and BGA, we are seriously tired of doing placements, calculations and tracing them. Thank you for your understanding.