If I were using that method do I require double density disks to convert onto? Sorry, just trying to conceptualize the step-by-step of what you do *with* the kit for the end result of turning ADF files from the PC onto a playable game on the A1200 
Hi!
Yes you will need some blank disks for this method, EasyADF was the first thing I got when I pulled my A1200 out fo storage 2 years ago. Its very simple to use - I just bought the software a I already had CF PCMCIA adapter in my box of PeeCee parts.
After a couple of months writing ADF's started to get a little tedious and I bought an 8mb Upgrade and started using WHDLoad which is a much better experience, problem with old floppy disks is read/write errors unless you can find good or new Disks.
Still well worth getting the transfer kit though as it'll open doors when/if you do decide to upgrade further

Here is the step-by-step bit you wanted:
Insert CF/PCMCIA Adapter with Fat16 Formatted CF Card contining ADF's
Insert EasyADF Floppy and turn on Amiga, it will start to boot and ask you for a Workbench disk.
Once workbench is loaded you will have an EasyADF Icon (all Compact flash drivers will already be loaded)
Run EasyADF and pick the ADF you want to write, insert blank floppy and write!
If you have a hard Drive and booting Workbench enviroment already EasyADF and the Compact Flash Drivers can be installed to Workbench and ran from there.
Have fun!
Steve.