How do i stamp/sign the invoice when using zpost
I have been using zoho invoice for my invoicing operations, and am very happy with the product on the whole.
Before using Zoho, i used to manually create invoices and then print them out, add my company stamp, sign on it and then courier it to my client. The courier company used to send a pick up guy every couple of days to collect all invoices and send them on my behalf.
When my client received the invoice, they used to take their own sweet time to send back a cheque.
When i saw zpost, i was elated and initially thought it would be a perfect solution to this problem. HOWEVER, there is a hitch.
How do i stamp and sign my invoices before zpost sends it to the client?