itch.io

It's on my To-Do list, I just haven't gotten to it yet.  You can currently copy/paste from the .txt files in the Decks folder, but I do want to have an in game option for it.  I'm also unsure how I'd want to handle it specifically, as I'd want it to be more than just the card's filename, like you've said.  Thinking about it... all I would need is the set and card number and I could get the filename from that...  well, guess I know what I'm doing tomorrow.

Well, that took a few days longer than I thought it would, but it's done, the PDT has a deck Importer/Exporter, so re-download and try it out.  It even works for custom cards.