Yes, i do think that is a good idea; I actuall printed out some QR codes, but i forgot about them so they stayed in my backback😅.
The pdf is great, but you can also print a qr code containing nostr:<yourNpub>, so they can easily get to your profile (or use NFC), and then you can post a list of accounts you think are usefull to get people bootstrapped.
Good luck :)