Third-party licenses

What this page covers

The components below are the ones whose code or output reaches your browser, plus the build and hosting components used to produce the site. Tools that only run on our machines and never form part of what you download are not listed.

Each entry names the component, what it does here, and the license we read from the component’s own package metadata and license file.

Components delivered to your browser

These components are part of the JavaScript, fonts, and markup your browser downloads when you use the site.

• preact - user interface rendering for the interactive tools - MIT
• libheif-js - HEIC decoding in the HEIC to JPG converter - LGPL-3.0
• pdfjs-dist - rendering PDF pages in the PDF tools - Apache-2.0
• pdf-lib - reading and writing PDF documents - MIT
• @cantoo/pdf-lib - PDF editing with encrypted-document support - MIT
• react-image-crop - the crop selection in the image cropper and ID photo tools - ISC
• korean-lunar-calendar - lunar and solar date conversion - MIT
• @fontsource/ibm-plex-mono - the IBM Plex Mono webfont - OFL-1.1
• @lucide/astro - the icons embedded in the page markup - ISC

Build and hosting components

These components run when the site is built or served. Their own code is not sent to your browser, but the pages and stylesheets they produce are.

• astro - the site framework and static build - MIT
• @astrojs/preact - connects Preact components to Astro pages - MIT
• @astrojs/cloudflare - the Cloudflare deployment adapter - MIT
• tailwindcss - generates the stylesheet the site serves - MIT

libheif-js and the LGPL-3.0

libheif-js is licensed under the LGPL-3.0 and is statically included in the JavaScript this site sends to your browser. The HEIC to JPG converter uses it to decode HEIC images locally in your browser.

Because the library is combined into our JavaScript rather than loaded separately, the LGPL-3.0 requires that you be able to modify libheif-js and relink it with the rest of the application. To exercise that right, write to restatolabs@gmail.com and we will provide the source and the build materials needed to produce a version of the site’s JavaScript linked against your own copy of the library.

The rest of this site is not covered by the LGPL-3.0. The notice applies to libheif-js and to the obligation to allow relinking it.

• Full text of the GNU Lesser General Public License, version 3
• libheif, the upstream project
• libheif-js, the browser build we use

Corrections

If a license listed here is wrong or a component is missing, tell us at restatolabs@gmail.com and we will correct the page.