Qflow does not generate standalone QR code images for print media. You can create these yourself using a free online barcode generator and then import the barcode data into Qflow.
Steps
Generate unique, non-sequential barcode numbers and images using a free service such as https://barcode.tec-it.com/en.
Apply the barcode data and images to your print media (tickets, membership cards, badges, etc.), matching each barcode to a guest name.
Create an event in Qflow and import your guest data file, including the barcode column.
Use the Qflow check-in app to scan and track guests via their barcodes.