Open-source parts

PubOpener is free to use, but it isn't open source: © 2026 PubOpener, all rights reserved. It's built with these open-source parts made by others, each under its own licence.

Reading .pub files

• libmspub 0.1.4, Mozilla Public License 2.0. Source
• librevenge 0.0.5, MPL 2.0. Source
• libodfgen 0.1.8, MPL 2.0. Source
• Boost 1.86 (headers), Boost Software License 1.0
• zlib, zlib licence

We changed three files of the MPL libraries. Our changes are available under the MPL 2.0; applied to the versions above, they give the exact source used in PubOpener:

• libmspub: Windows code pages
• libmspub: picture brightness
• libodfgen: without libxml2

The app

• Tauri and its Rust libraries, MIT or Apache 2.0
• React, MIT
• TipTap and ProseMirror, MIT
• docx, MIT; mammoth, BSD 2-Clause
• pdf.js, Apache 2.0; @xmldom/xmldom, MIT
• Albert Sans font, SIL Open Font License 1.1; Boska font, ITF Free Font License

Questions: hello@pubopener.com

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