pdfmake — PDF Invoice Generation (Recommended)

GitHub: https://github.com/bpampuch/pdfmake
Deno: import PdfPrimer from "npm:pdfmake/build/pdfmake.js" — works natively

// api/lib/pdf-invoice.ts — lazy-loaded (same pattern as api/solana.ts)
async function loadPdfMake() {
  const { default: PdfPrimer } = await import("npm:pdfmake/build/pdfmake.js");
  const { default: pdfFonts } = await import("npm:pdfmake/build/vfs_fonts.js");
  PdfPrimer.vfs = pdfFonts.pdfMake.vfs;
  return PdfPrimer;
}

Use for: platform invoices, settlement statements, rebate notices.