Zero-Dependency Invoice Generator

A pure TypeScript library to generate PDF invoices from scratch, adhering to the ISO 32000 PDF 1.4 specification without any external dependencies.

Features

• Zero Dependencies: No pdfkit, jspdf, or puppeteer. Just pure TypeScript/JavaScript.
• Native PDF Generation: Implements a mini PDF engine writing raw ISO 32000 headers, objects, and streams.
• Professional Design: Includes a styled invoice layout with blue accents and grid alignment.
• Type Safe: Written in TypeScript with full type definitions.

Installation

npm install ez-invoice-nodep

Usage

import { InvoiceGenerator, InvoiceData } from 'ez-invoice-nodep';

const invoiceData: InvoiceData = {
  invoiceNumber: 'INV-001',
  date: '2025-01-01',
  company: {
    name: 'My Company',
    address: '123 Tech Park',
    city: 'Silicon Valley',
    phone: '555-0123'
  },
  client: {
    name: 'Client Name',
    address: '456 Client St',
    city: 'Client City',
    zip: '90210'
  },
  items: [
    { description: 'Service A', qty: 10, price: 100.00 },
    { description: 'Service B', qty: 5, price: 50.00 },
  ],
};

const generator = new InvoiceGenerator(invoiceData);
generator.generate('invoice.pdf');

License

ISC