Rivoli PDF / Generate invoices PDF C#
Generate invoice PDFs in C#, from data to document
An invoice is a header, an address block, a line-item table, and totals that had better add up. Rivoli PDF renders all of it from your domain objects, with per-cell styling and computed totals, in a library that deploys anywhere your code does.
Install and generate
No system libraries, no headless browser, no per-platform setup. Rivoli.Pdf 0.1.0 targets .NET 8 and .NET 10.
using Rivoli.Pdf;
using Rivoli.Pdf.Builders;
var doc = Document.Create("Invoice INV-2026-0420", "Northwind Studios");
doc.AddSection()
.H1("Invoice INV-2026-0420")
.AddTable(t => t
.Header("Description", "Qty", "Amount")
.Row("Senior engineering consulting", "42", "$7,770.00")
.Row("Cloud infrastructure setup", "1", "$2,400.00"));
doc.SavePdf("invoice.pdf");The full invoice showcase in the repository adds brand colors, right-aligned money columns, computed subtotal, tax, and total rows, and payment terms. Amounts are computed in code, so the document is a real template, not hard-coded strings.
The output
Real output from the runnable samples in the Rivoli PDF repository.
How we compare
The libraries teams usually shortlist for invoice generation.
| Capability | Rivoli PDF | QuestPDF | IronPDF |
|---|---|---|---|
| Free for small companies | |||
| Entry price (per developer) | $299 | ~$999/yr | $999 |
| Royalty-free redistribution included | Add-on | ||
| Fully managed (no native deps) | |||
| Deterministic output | |||
| PDF/A-first | |||
| JSON document model + change tracking | |||
| Round-trip fidelity harness | |||
| Cross-language roadmap | 5 planned | Multi |
Competitor prices are researched approximations (June 2026); several vendors are now quote-gated, so some figures are historical or third-party. Rivoli PDF is pre-1.0: document creation is feature-complete, while full parsing of arbitrary PDFs and rasterized rendering are partial and on the near-term roadmap.
Pricing
Free for individuals and for organisations under US$1M in annual gross revenue. One perpetual per-developer license for everyone else.
Full library, no watermark, no page limits. For individuals and organisations under US$1M in annual gross revenue.
Buy once, use forever. Royalty-free redistribution included, and the early-access rate locks in for life.
Full details on the product page and in the license terms.
Moving your invoice pipeline
Invoice generators are usually HTML templates plus a converter, or coordinate-drawn layouts. Both port cleanly.
- 01 Model the invoice as data (line items, tax rate) and map it to a Table with Header and Row helpers; compute totals in code so they are always consistent.
- 02 Right-align money columns and highlight total rows with per-cell Style overrides; styles cascade so the defaults stay in one place.
- 03 Serialize the document tree to JSON if you need to store or audit exactly what was sent to a customer.
- 04 Render twice in CI and compare hashes: deterministic output means an invoice regression test is two lines.
- 05 Before migrating reading-heavy workflows (filling existing forms, rendering pages to images), check current support in the docs gallery: Rivoli PDF is pre-1.0 and strongest at authoring.
The full migration guide, with concept mappings and before/after code, lives in the documentation.
Start free. Pay only when you're big.
Install the package today. When your company crosses the US$1M line, the Founder rate locks in for life.