.pdf files for Sentinel Tactics comics

Hello, Nielzabub here. I recently finished a motion comic based on the Freedom Four Annual #1. I'd like to do more projects in that vein, but the only other Sentinel comics that have been released are the ones that came with Tactics. As far as I can tell, there are no copies of the comics online. So, how would one go about making digital copies of the comics or is there anyway for me to get a .pdf of the existing comics?