Shopify gives you order confirmation emails and basic packing slips, but it does not produce tax-compliant, branded PDF invoices with sequential numbering, your VAT/GST registration details, or credit notes for refunds. Most merchants end up exporting orders to a spreadsheet or paying monthly for a generic App Store app that can't quite match their legal format.

The Professional PDF Invoice Generator is a Shopify app ECOSIRE builds, installs and configures specifically for your store. It is not an instant one-click App Store download — it is a tailored embedded app delivered to your shop after purchase, wired into your exact branding, tax rules and document templates.

Once installed, the app listens to Shopify webhooks (orders/create, orders/paid, orders/fulfilled, refunds/create) and uses the Admin GraphQL API to pull complete order, customer, line-item and tax data. It then renders a pixel-accurate PDF — invoice, packing slip, returns form, quotation or credit note — and attaches or links it automatically.

What you get: - Auto-generated invoices the moment an order is placed, paid or fulfilled - Sequential, gap-free invoice numbering for audit and tax compliance - Your logo, colours, footer, payment terms and registration numbers baked into the template - Multi-currency rendering from the order's presentment currency and multi-language documents driven by customer locale - Bulk-print and export thousands of historical orders to a single merged PDF or ZIP - Credit notes auto-created on refund, plus packing slips and returns forms

Built embedded in Shopify Admin with App Bridge and Polaris, authenticated via OAuth, with order metadata stored in metafields so your documents survive theme and app changes. ECOSIRE handles install, template design and ongoing support.