Python Invoice PDF Generator

Generate professional, branded PDF invoices directly from Python using ReportLab.

This project is a production-style example of how to create invoices automatically for:

• SaaS platforms
• subscription billing
• marketplaces
• freelancers
• internal business tools

Why this exists

Generating invoices sounds easy… until you actually need it in production.

Typical problems:

• HTML to PDF tools break layouts
• Stripe invoices are not customizable enough
• Word templates don't scale
• libraries have poor documentation

This repository shows a clean, maintainable way to generate invoices directly in Python code, with full layout control and zero external dependencies.

Quick Start

git clone https://github.com/hasff/python-invoice-pdf-generator.git
cd python-invoice-pdf-generator
python -m venv venv
source venv/bin/activate   # Windows: venv\Scripts\activate
pip install -r requirements.txt
python generate_invoice.py

The script will create:

output/invoice_sample.pdf

Need custom PDF generation?

I help companies automate document generation:

• invoices
• certificates
• reports
• labels
• batch exports
• integration with APIs and databases

Typical use cases:

• SaaS billing systems
• automated emailing
• ERP integrations
• internal dashboards

📩 Contact: hugoferro.business(at)gmail.com

🌐 For full courses and professional templates, visit: https://hasff.github.io/site/

Further Learning

This repository demonstrates a real-world style invoice generator built with ReportLab. It is intentionally kept simple and usable, but it is based on techniques I developed while working on client PDF automation projects.

If you want a complete, structured walkthrough of how systems like this are designed and extended, I cover it in my full course:

Python PDF Generation: From Beginner to Winner (ReportLab)

In the course you will learn:

• layout and pagination strategies
• working with TrueType fonts and branding
• images and watermarks
• PDF forms (checkboxes, radio buttons, dropdowns, text fields)
• document protection and permissions
• exporting PDFs from a Django application
• how to structure readable and maintainable production code

The course is optional — the repository is fully usable on its own — but it provides deeper understanding of the architectural decisions behind this example.