how to generate an invoice

Question

Hello,

I have started freelancing and a client has asked for an invoice.

Do you have a favorite tool for generating invoices? I am after something that I can use from Linux (either a desktop tool or web solution) and generates well formatted Pdf's.

thanks

Answer 1

Gnucash. It has that.

Answer 2

Quick Books is the defacto standard in this space these days but if you only use linux you can try http://www.quickbooksonline.com

Answer 3

OpenOffice spreadsheet