Open-source licenses

HivePDF runs entirely in your browser, built on this open-source software.

Libraries

@cantoo/pdf-lib — MIT — PDF manipulation (merge, split, images, sign, compress)
pdf.js — Apache-2.0 — PDF rendering and page rasterization
qpdf (via @jspawn/qpdf-wasm) — Apache-2.0 — PDF encryption and decryption (Protect and Unlock)
tesseract.js — Apache-2.0 — Optical character recognition (OCR)
libheif (via libheif-js) — LGPL-3.0 — HEIC/HEIF image decoding (HEIC to PDF). Loaded as a separate WebAssembly module at runtime, so it can be replaced. Source: strukturag/libheif, libheif-js. License text: libheif LICENSE.
libde265 — BSD-3-Clause — HEVC decoder used by libheif for HEIC
UTIF.js — MIT — TIFF image decoding (TIFF to PDF)
fflate — MIT — Zipping multiple output files in the browser
Astro, React, Tailwind CSS — MIT — Site framework and UI

Caveat — SIL Open Font License 1.1, by the Impallari Type project. Used for typed signatures in the Sign tool. License text: Caveat-OFL.txt.