I built a Windows app that generates PDF invoices in seconds, here's why

I wanted to earn some money with a side project, so I built a small

Windows desktop app that generates professional PDF invoices.

You fill in your client details and line items, click Generate, and

a branded PDF invoice is ready to send.

It supports VAT calculation, IBAN/BIC payment details, your logo and

brand color, and auto due-date based on your payment terms.

Built in Python using fpdf2 and Tkinter, packaged as a standalone

Windows .exe — no Python knowledge needed to use it.

Available for €7.99 one-time: https://payhip.com/b/qoZVE

Feedback welcome!