The PDF standards and preflight engine. Convert any PDF to every PDF/A level, PDF/UA, PDF/X, PDF/E and PDF/VT, then preflight the result against 396 bundled profiles to confirm it conforms.
Ships as a CLI, npm package, browser WebAssembly build, Docker image and C library.
Open source, self-hosting and internal use stay free. Kura is licensed under the AGPL-3.0. If your project is AGPL-compatible, or you run Kura as-is for yourself, you never need a commercial license. Commercial licenses are only for shipping Kura inside closed-source software.
Per product, billed annually and renewed automatically. Your license and every update stay valid while your subscription is active.
One developer, under $100k annual revenue
Companies under $1M annual revenue
Companies at $1M annual revenue or more
Redistribution, reselling as an SDK, or offering Kura as a service
GitHub repository: github.com/alam00000/bentopdf-kura
Every tier lets you ship Kura inside one closed-source product. The tiers differ by who you are, how many developers you have, and whether Kura is passed on to anyone else.
| Solo | Indie | Business | OEM | |
|---|---|---|---|---|
| Who it's for | One developer, under $100k annual revenue | Companies under $1M annual revenue | Companies at $1M annual revenue or more | Anyone redistributing, reselling or hosting the engine |
| Annual price | $99 | $199 | $499 | from $1,999 |
| Developers covered | One developer | Unlimited | Unlimited | Discussed with you |
| Closed-source products covered | One | One | One | Terms shaped to your product |
| Updates while active | ||||
| Support | Priority email | Priority | ||
| Redistribute inside someone else's product | ||||
| Resell as an SDK | ||||
| Offer Kura as a hosted service |
Redistribution, reselling and hosting are what separate OEM from the rest. If Kura only ships inside your own closed-source product, the choice between Solo, Indie and Business is purely a question of your size.
A license covers one shipped product. A second product needs a second license, or ask about covering your whole catalogue at OEM.
You get every release while your subscription is active. Your rights to use, ship and host Kura last as long as your subscription does.
The commercial license replaces the AGPL for your product. You ship closed source, with no requirement to publish your changes or your application.
Kura is written and owned by BentoPDF, and every third-party component it links, including qpdf, PDFium and FreeType, is permissively licensed. No copyleft surprises in your supply chain.
Only if you ship Kura inside closed-source software. Open-source projects under an AGPL-compatible license, self-hosting, and internal use are all free under the AGPL-3.0.
No. Kura is a separate project with its own license. The BentoPDF app license does not grant any rights to Kura, and a Kura license does not cover BentoPDF.
You move up to the matching tier at your next renewal. Nothing retroactive. Growing past a threshold mid-term never invalidates your current license.
You have 30 days to renew. After that, you can no longer release new versions of your product with Kura, offer it to new users, or serve or host it, including web apps that load it in the browser. Copies your end users installed on their own devices before then keep working. Any other use falls under the AGPL, and renewing later includes the time since your license ended. The full license terms cover every condition in detail.
Tell us what you're building and we'll tell you what it costs. No calls required.