Open Source Licenses

The open source software that powers PDkef, and their license terms.

PDkef is built with the following open source packages. We're grateful to their authors and maintainers. Each package's full license text is linked below; the original notices are also preserved in our source repository.

PackageVersionLicenseCopyright
Astro7.0.3MITCopyright (c) 2021 Fred K. Schott
@astrojs/preact6.0.0MITCopyright (c) 2021 Fred K. Schott
Preact10.29.3MITCopyright (c) 2015-present Jason Miller
@cantoo/pdf-lib2.7.1MITCopyright (c) 2019 Andrew Dillon
pdf.js (pdfjs-dist)6.1.200Apache-2.0Copyright (c) Mozilla and individual contributors
SortableJS1.15.7MITCopyright (c) 2019 All contributors to Sortable
signature_pad5.1.3MITCopyright (c) 2018 Szymon Nowak
@vercel/analytics2.0.1MITCopyright (c) 2026 Vercel, Inc.
Caveat Font1.1OFL-1.1Copyright The Caveat Project Authors
Dancing Script Font1.1OFL-1.1Copyright The Dancing Script Project Authors
Great Vibes Font1.1OFL-1.1Copyright The Great Vibes Project Authors
Gveret Levin Font1.1OFL-1.1Copyright The Gveret Levin Project Authors
Pacifico Font1.1OFL-1.1Copyright The Pacifico Project Authors
Playpen Sans Font1.1OFL-1.1Copyright The Playpen Sans Project Authors
Sacramento Font1.1OFL-1.1Copyright The Sacramento Project Authors

Full license texts are also available in this project'sTHIRD_PARTY_LICENSES.md.