Welcome to the Atrium Tools Pro Invoice Maker. Getting paid on time starts with presenting a clear, professional, and mathematically accurate invoice to your clients. Our browser-based utility allows freelancers, contractors, and small business owners to generate beautiful PDF invoices in seconds without dealing with complex spreadsheet formulas.

1. Customizing Your Brand & Currency

A professional invoice should match your business identity. You can easily upload your company logo by clicking the upload box at the top left. Furthermore, this tool supports over 30 global currencies. Whether you are billing a local client in Sri Lankan Rupees (Rs) or an international contractor in US Dollars ($), simply select your preferred currency from the dropdown menu, and all line items and totals will automatically update to reflect your choice.

2. Automated Taxes and Discounts

Manual math errors on invoices look unprofessional and can delay your payments. Our system handles all calculations for you dynamically. Add as many line items as you need, and the engine will instantly calculate the subtotal. You can easily apply a global Tax rate (as a percentage, such as VAT or GST) or subtract a flat-rate Discount. The Grand Total is guaranteed to be 100% accurate every time.

3. Zero-Server Privacy (Highly Secure)

Invoices contain incredibly sensitive financial data, including your client's address, your banking details, and pricing structures. Unlike typical online invoice generators that save your billing history to a remote database, the Atrium Invoice Maker is built on local DOM architecture. Your data is processed securely inside your own web browser. When you click "Generate," the PDF is drawn locally. We do not track, store, or have access to your invoices.

Frequently Asked Questions

Do I need to create an account to use this?

No. Atrium Tools is completely free and requires zero registration. You can generate unlimited invoices without ever hitting a paywall or login screen.

How do I add my bank details for payment?

Use the "Payment Terms / Notes" section at the very bottom of the editor. This is the standard location to include your bank account number, routing details, SWIFT codes, or specific payment deadlines (e.g., "Net 30").

What happens to my logo when I upload it?

Your logo is temporarily converted into a Base64 string directly inside your browser so it can be printed onto the PDF. It is never uploaded to our web servers.