Tagihin | Invoice, Quotation & PDF Generator

Tagihin: taking a quotation from line items to a branded invoice and payment link.

The problem Manual document editing can create inconsistent totals and make it difficult to reuse client information or follow invoice status.

My solution I built an invoicing workspace that connects saved clients, reusable products, document calculations, and PDF output.

Key features • Quotations that can be converted into invoices • Discounts, configurable tax, and shared calculation logic • Branded PDF exports • Public document links and payment status • Multi-currency support on the Pro plan

Engineering notes Client and server use the same calculation logic. Webhook processing is idempotent. Screenshots use seeded clients/documents, and payment demonstrations use Midtrans Sandbox.

Built with: Next.js · React · TypeScript · PostgreSQL · Prisma · React PDF · Midtrans · Tailwind CSS