GST Invoices

A minimal, dependency‑free PDF invoice generator for WooCommerce with Indian GST helpers.

Highlights
– Logo upload via Media Library. Defaults to the theme Site Logo if none selected.
– Email attachments: attach invoice PDF to Completed/Processing emails (filterable).
– My Account downloads: “Download Invoice” button for order owners.
– Company details: name, GSTIN, address printed on invoice.
– HSN/SAC + GST split: reads product HSN/SAC; prints IGST/CGST/SGST line split.
– Bulk export: select orders and Download Invoices (ZIP).
– No external PDF libraries (tiny built‑in generator).