I have a VF page and on that VF page I select a project and click generate invoice, on that click an new VF page is displayed as PDF. I want to attach that generated PDF VF page to the selected project after the invoice is generated. How can I achieve it please guide me to get this problem solve.
Assuming "Project" is a custom object.
Enable notes and attachment for the custom object.
When you click 'generate invoice', just before redirecting to VF page use