🧾 Invoice Generator (Python FPDF)

A Python-based Invoice Generator designed to create professional PDF invoices for retail shops and businesses. This tool enables dynamic invoice creation with customizable client and seller information, itemized product lists, automatic tax calculations, and payment summaries, ensuring your invoicing process is accurate, efficient, and visually appealing. Built using the lightweight FPDF library.

🚀 Features

• Dynamic Invoices – Auto-generated invoice numbers and dates.
• Custom Info – Add client and seller details effortlessly.
• Itemized Billing – Multiple products with quantity, price, and totals.
• Automatic Calculations – Subtotal, taxes, discounts, and grand total computed.
• Professional Layout – Clean headers, footers, and styled tables.
• PDF Export – Save and share print-ready invoices.

🛠️ Tools, Libraries & Technology

• Python 3.x – Core programming language
• FPDF – Lightweight PDF generation library for Python
• OS & File Handling – For managing PDF output directories
• Datetime – For automated date and timestamp generation
• Math Operations – For subtotal, tax, discount, and grand total calculations

💡 Usage

This project runs entirely on the Command-Line Interface (CLI)

1. Install Dependencies Ensure FPDF is installed:

pip install fpdf pandas

2. Prepare Dataset Create or update your dataset with invoice information. Ensure the data schema matches the expected fields (e.g., seller info, client info, item details, tax, discount).

3. Configure Settings Update the configuration in the script to point to your dataset and adjust any necessary parameters.

4. Run the Invoice Generator

python main.py

5. Generate PDF Invoices The script reads your dataset, processes the information, and outputs professional PDF invoices in the configured folder.

📄 Sample Output

Below are examples of invoices generated by the Vertex Invoice Generator:

1. Full Product Invoice

🏆 Skills Demonstrated

• Python programming and object-oriented design
• Automated document generation with FPDF
• File handling and directory management in Python
• Implementation of dynamic calculations (taxes, discounts, totals)
• Data structuring and presentation in professional PDF format
• Attention to UI/UX in document design for readability and professionalism

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🔗 Potential Improvements

• Integration with a database to store invoice history
• Adding barcode or QR code for invoice verification
• Web interface for online invoice creation and management
• Support for multiple currencies and tax systems