Open source
Open-Source Licenses
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PDF AutoPilot is built on excellent open-source software. Most of it runs entirely in your browser — which is exactly why your files never have to leave your device. This page lists the third-party components we use and the licenses they are provided under, in gratitude to the people who wrote them.
Runs in your browser
- Next.js — MIT
- React & React DOM — MIT
- Radix UI — MIT
- pdf-lib — MIT
- pdf.js (pdfjs-dist) — Apache-2.0
- fontkit & @pdf-lib/fontkit — MIT
- ONNX Runtime Web — MIT
- Framer Motion — MIT
- Lucide icons — ISC
- Recharts — MIT
- Zustand — MIT
- cmdk — MIT
- Sonner — MIT
- class-variance-authority — Apache-2.0
- clsx & tailwind-merge — MIT
- next-themes — MIT
- Tailwind CSS — MIT
- regenerator-runtime — MIT
Models & fonts
- U²-Net (u2netp) segmentation model — Apache-2.0 · Powers the on-device Background Remover.
- Noto Sans & Noto Sans Devanagari — SIL Open Font License 1.1 · Embedded so PDFs can render non-Latin scripts.
Server-side tools
These power the tools marked “Server” (OCR, Office conversions, and accounts).
- Spring Boot — Apache-2.0
- Apache PDFBox — Apache-2.0
- Apache POI — Apache-2.0
- Tesseract OCR & language data — Apache-2.0
- LibreOffice — MPL-2.0 · Invoked as a separate process for Office conversions.
- PostgreSQL — PostgreSQL License
- Anthropic Java SDK — MIT
- Stripe Java SDK — MIT
- Google API Client — Apache-2.0
- JJWT — Apache-2.0
HEIC decoding — LGPL notice
The HEIC to JPG tool decodes Apple's HEIC/HEIF format using heic-to, a JavaScript build of libheif and libde265, which are licensed under the GNU Lesser General Public License v3.0 (LGPL-3.0).
In keeping with the LGPL, we use this library unmodified and load it as a separate, self-contained module that is only fetched when you open the HEIC tool — so it can be identified and replaced independently of the rest of PDF AutoPilot. The complete corresponding source for the exact version we ship is available at the links above, and a copy of the LGPL-3.0 license text ships with the package. If you would like the relink materials, contact us at legal@autopdfpilot.tech.
Questions
Think an attribution is missing or wrong? Let us know at legal@autopdfpilot.tech and we'll fix it. A machine-readable list also lives in THIRD-PARTY-NOTICES.md in our source repository.