What problem does it solve? Building GST-compliant tax invoice PDFs in India requires correct CGST/SGST/IGST breakdowns, HSN codes, INR lakh formatting, and sequential invoice numbering per financial year, which is error-prone to implement from scratch. ## Core Features & Use Cases - GST Invoice Template: A complete @react-pdf/renderer Document component with seller/buyer blocks, HSN item table, and conditional CGST+SGST, IGST, or EXPORT_LUT tax summaries. - Worker Rendering & Storage: Renders the PDF to a buffer with renderToBuffer and uploads it to Vercel Blob, storing the URL on the invoice record. - Invoice Numbering: Generates sequential INV/YYMM/NNNN numbers scoped per tenant and Indian financial year (April–March). - Use Case: In the DropFlow worker, generate a tax invoice PDF for a completed order with the correct GST split based on seller and buyer state codes, then store the public URL. ## Quick Start Ask the AI to generate a GST-compliant invoice PDF for an order using the @react-pdf/renderer template in the worker and upload it to Vercel Blob.