If you are just trying to process the transaction and don't need eg catalog or inventory management, Stripe Payment Links probably does the trick: https://stripe.com/payments/payment-links
Thanks, great advice! I already created an account and looked around a bit. However, it seems that I need to make a payment link for each digital image (correct?), because I'd need to use the forwarding functionality to forward the user to the download link after the payment.
