head to head · open source
LibreOffice vs PDF4QT
LibreOffice has 4,590 GitHub stars, 996 forks, 0 open issues and last shipped yesterday. PDF4QT has 1,505 stars, 154 forks, 32 open issues and last shipped 2 days ago. LibreOffice leads on adoption by 205% (4,590 vs 1,505 stars). LibreOffice is written in C++ under GPL-3.0; PDF4QT is written in C++ under MIT. LibreOffice has attracted 22% as many forks as stars, PDF4QT 10%. LibreOffice was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| LibreOffice | PDF4QT | |
|---|---|---|
| GitHub stars | ★ 4.6K | ★ 1.5K |
| License | GPL-3.0 | MIT |
| Written in | C++ | C++ |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 996 | ⑂ 154 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick LibreOffice if
- You weight community size — 4.6K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches C++
- You value the larger contributor base for long-term maintenance
pick PDF4QT if
- You want the PDF4QT feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches C++
- You evaluated both and PDF4QT fits your workflow better
About LibreOffice
LibreOffice LibreOffice is an integrated office suite based on copyleft licenses and compatible with most document formats and standards. Libreoffice is backed by The Document Foundation, which represents a large independent community of enterprises, developers and other volunteers moved by the common goal of bringing to the market the best software for personal productivity. LibreOffice is open source, and free to download, use and distribute. A quick overview of the LibreOffice code structure. Overview You can develop for LibreOffice in one of two ways, one recommended and one much less so. First the somewhat…
read the full LibreOffice overview →
About PDF4QT
PDF4QT (c) Jakub Melka 2018 2026 Mgr.Jakub.Melka@gmail.com This software is consisting of PDF rendering library, and several applications, such as advanced document viewer, command line tool, and document page manipulator application. Software is implementing PDF functionality based on PDF Reference 2.0. It is written and maintained by Jakub Melka. Software works on Microsoft Windows / Linux. Software is provided without any warranty of any kind. Should you find this software beneficial, your support would be greatly appreciated :heart: Sponsor! 1. ACKNOWLEDGEMENTS This software is based in part on the work of…
read the full PDF4QT overview →
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Frequently asked questions
Is LibreOffice or PDF4QT more popular?
LibreOffice has 4,590 GitHub stars and PDF4QT has 1,505. LibreOffice has the larger community by that measure.
Are LibreOffice and PDF4QT free?
Both are open source. LibreOffice is licensed under GPL-3.0 and PDF4QT under MIT. Neither carries a licence fee.
What is the difference between LibreOffice and PDF4QT?
LibreOffice is written in C++ and PDF4QT in C++. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, LibreOffice or PDF4QT?
Choose LibreOffice if you want the larger community (4,590 stars) or its GPL-3.0 licence terms. Choose PDF4QT if its feature set, stack or MIT licence fits better. Both are self-hostable.