Or make your own.
https://www.qrcode-monkey.com/#text
*Bonus points if you can make it read out on the register screen
>>520328780
There are easier ways.
like overlays in 1 dot yellow, random scatter arrays, use someone else's computer in a costume,(never use that costume again,) like a university, business or library
Split each full page into 4 sections but save as 1 image(I.E.DO NOT use print layout for 1 image)

Have a Whitepaper:
https://media.taricorp.net/p15-embar.pdf