I want to include some instruction for game variants on my current game box and in the future I may want to include an entire rulebook for original games. Does Zun Tsu support including PDF's or should I just make an image out of the text?
You can always just provide the PDF separately and let players open it in a PDF viewer in another Window or on a second monitor. If you include rules on another tab, switching to that tab will hide the board for all players.