Invoice Generator, Estimate Templates is a very useful business tool for all your invoicing needs, right from sending estimates to invoices, recording a payment to finally issuing a payment receipt to your client. Create and send professional looking PDF invoices. Free and simple online invoice template for your business. Automatically calculates taxes, discounts and totals. You can email a PDF invoice to your customers, or share the invoice PDF to existing apps on your phone like Whats App or