On Wed, 23 Feb 2011, Darren Wiebe wrote:
When I send out a PDF invoice it has a link to Paypal containing the invoice number and total price. When they click the link they're presented with the paypal site with the payment information prepopulated. It works quite well.
Care to share your code/implementation? No point in re-inventing the wheel if you've got it going already.
Regards, Luke