Send invoices as PDF without Stripe Connect

Users would be able to use the invoicing feature without Stripe Connect under Payments -> Invoices
. This includes sending both one-time and recurring invoices. 
The end customer would be able to download a pdf of the invoice
After sending the invoices as pdf, users will be able to mark the invoice as paid after receiving payment from the customer using the Record Payment
 option in the invoice.
To accept card payments on invoices, Stripe Connect is mandatory