Recent Posts

Version 1 of TDF Community Bylaws

Why open standards are extremely beneficial to end users

LibreOffice Podcast, Episode #6 – Language support

The Future of Open Standards and the Importance of ODF

Updated Conflict of Interest Policy for TDF’s Board of Directors

LibreOffice project and community recap: December 2025

LibreOffice project and community recap: May 2023

Community members in Italy

Here’s our summary of updates, events and activities in the LibreOffice project in the last four weeks – click the links to learn more…

  • We started May with the Month of LibreOffice! This is a campaign that we run twice a year, encouraging users to join our community and help to improve the software. Everyone can learn new things – and get some merchandise as thanks! Results will be announced here on the blog very soon…

Month of LibreOffice banner

LibreOffice logo banner

  • LibreOffice’s YouTube channel went over the 3 million views mark. Great stuff! We’d like to say a special thanks to community members who’ve contributed great work, such as the Indonesian community for the “New Features” videos (major LibreOffice releases), and Harald B. in the German community for his tutorials. (Note that many of the videos are also available on PeerTube.)

Video thumbnails

  • Our QA (Quality Assurance) community helps to identify and fix bugs in LibreOffice. Every week, Ilmari Lauhakangas from The Document Foundation (the non-profit entity behind LibreOffice) live-streams bug triaging sessions, so that others can see how he works on bug reports, and ask him questions. So, what do attendees think of the sessions so far? We asked some regulars – here’s what they said…

Ilmari Lauhakangas

LibreOffice icons

  • The LibreOffice Conference 2023 is coming up in Bucharest, Romania – September 21 – 23! And sponsorship packages are now available. Get in contact with one of the largest open source communities in the world, showcase your brand, and support FOSS!

LibreOffice Conference 2023 logo

  • One of the goals of The Document Foundation and the community it represents is to improve LibreOffice to make it even more competitive with other office suites. And one of the tools to achieve this goal are tenders for the development of specific features, such as the implementation of OpenDocument Format version 1.3, the standard format used by LibreOffice and other applications. So we are looking for tender ideas and proposals to improve LibreOffice – let us know what you think.

Spanish-speaking community members

  • Ever heard the term “scratching your own itch”? Wiktionary describes it as “doing something out of motivation to solve a personal problem”. In the world of free and open source software development, this happens a lot! Anyone can contribute to FOSS projects like LibreOffice, and help to improve them. And that’s exactly what Rafael Lima did, with a long-standing limitation in LibreOffice. Here’s what he had to say.

Rafael Lima

Italian community members

GSoC logo

  • And finally, we welcomed Khaled Hosny to the team at TDF. He’ll focusing on improving LibreOffice’s language support, making the software more accessible to hundreds of millions of people around the world.

Khaled Hosny

Keep in touch – follow us on Twitter, Facebook and Mastodon. Like what we do? Support our community with a donation – or join us and help to make LibreOffice even better!

LibreOffice Math Guide is Updated to Release 7.5

The LibreOffice Documentation team is happy to announce the new Math Guide 7.5, for the equation editor of the LibreOffice productivity suite.

Anyone who wants to learn how to insert formulas and equations using Math will find this 73-page guide valuable. Formulas can be inserted as objects into Writer, Impress, Draw, and Calc documents. Regardless of the document type, formula objects are edited using LibreOffice Math.

Thanks to Vitor Ferreira, the new guide has included the changes carried from LibreOffice 7.2 and is now fully updated.

Math Guide 7.5

He added:

I am a college professor of Mechanical Engineering at Universidade Federal da Bahia (UFBA) in Salvador, Brazil. I use LibreOffice Math since 2019 for my documents and lectures notes, and I together with the Brazilian LibreOffice Community I updated the Math Guide to the latest release.” Said Vitor Ferreira. “The opportunity to volunteer to LibreOffice Documentation was unique and I found it very encouraging in all aspects of document production.

Vitor Ferreira

The Math Guide 7.5 is available for immediate download in PDF and ODF formats at the Documentation website and the LibreOffice Bookshelf website.

REMINDERS: LibreOffice Conference

If you plan to attend the LibreOffice Conference 2023 in Bucharest, it’s time to:

REGISTER: https://conference.libreoffice.org/2023/registration-form/

CHECK IF YOU NEED A VISA: https://igi.mai.gov.ro/en/coming-travelling-to-romania/

If you want to share your experience about contributing to LibreOffice, or using LibreOffice:

SEND YOUR TALK PROPOSAL: https://events.documentfoundation.org/libreoffice-conference-2023/cfp

If you are a company, and want to support the annual community gathering of the LibreOffice project:

CHECK THE SPONSOR PACKAGE: https://blog.documentfoundation.org/blog/2023/05/08/libocon-sponsor-packages/

Last, but not least, if you are interested in hosting the next LibreOffice Conference:

CHECK THE CALL FOR LOCATIONS: https://blog.documentfoundation.org/blog/2023/03/08/host-for-libocon-2024/

See you in Bucharest !!!

Development and Quality Assurance: TDF’s Annual Report 2022

Annual Report banner

In 2022, 11,769 commits were made to the LibreOffice source code, from 218 authors, in 10 repositories. We also took part in the Google Summer of Code, to support student developers

(This is part of The Document Foundation’s Annual Report for 2022 – we’ll post the full version here soon.)

Infrastructure for developers

TDF provides infrastructure for the developer community to continue their work on LibreOffice. These include Git and Gerrit, to make changes to the source code, along with Bugzilla (to track bug reports and enhancement requests), a wiki (to document changes), and Weblate (for translations).

Most technical discussions took place on the developer mailing list and IRC channel, with the latter providing more real-time communication. Members of the Engineering Steering Committee met weekly, to discuss the most pressing issues with the codebase.

Google Summer of Code (GSoC)

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GSoC is an annual programme in which student developers of free and open source software projects receive stipends from Google for their work. LibreOffice takes part in GSoC every year, and in 2022, two students developed features and updates in the software. Let’s go through them…

Hannah Meeks – VBA Macros – Tests and missing APIs: LibreOffice supports VBA (Visual Basic for Applications) Macros, but the implemented API isn’t complete and the API functions aren’t largely tested. The consequence of this is that the VBA macros in OOXML documents don’t run as intended in LibreOffice, which causes compatibility problems. The goal of this project is to add tests for the functions already implemented and then look for what functions are missing for a method or module and add them. Hannah described her results:

I wrote lots of macros tests which was the main aim of the project and found lots of bugs/areas to fix, so my summer was a success! I also really enjoyed looking into the core and fixing some of these problems. Lots of my tests are still broken in LibreOffice so need fixing – for example, I found that there seem to be problems with new lines being created in Microsoft Word that are not created in LibreOffice Writer.

The second project was by Paris Oplopoios – Extend Z compressed graphic format support. Some graphic formats are compressed with ZIP (deflate) to make them smaller, while the formats themselves don’t support compression. In LibreOffice we already support SVGZ format, but not other formats. The goal of this idea was to look at how SVGZ is implemented and extend that to other formats (EMF, WMF). The extended goal was to implement support for compressing in addition to extracting.

Paris got off to a flying start with the originally defined goal, which was to add import functionality for Z compressed EMF and WMF graphics and thus to improve compatibility with Microsoft documents. In the end, he also implemented exporting of WMZ, EMZ and SVGZ graphics, replaced homegrown PNG export code with one that uses libpng and added automated tests for PNG export in addition to tests for the Z compressed formats.

For more details about the students’ great achievements, see the video below and the results post – and thanks to Tomaž Vajngerl and Miklos Vajna (Collabora) and Thorsten Behrens (allotropia) for mentoring the students.

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Quality Assurance (QA)

In 2022, the QA team triaged thousands of bugs, bisected hundreds of regressions, and answered questions from countless bug reporters. As one of the most visible groups directly responding to end users, the QA team must be nimble and able to adapt to changes. In addition, it must deal with specific requests for help from other teams.

The QA team meets regularly on IRC on the #libreoffice-qa channel, which is the best medium for discussing bugs and regressions. The IRC channel provides an excellent opportunity to remain in close contact with team members, and to tutor new members in the art and skill of LibreOffice QA. This is bridged to the Telegram group.

During 2022, 5,966 bugs were reported by 2,650 users, which means 115 new bugs were reported every week on average. The QA team prepared monthly reports about their activity and posted on the QA blog.

Top 10 bug reporters

  1. Telesto (288)
  2. Eyal Rozenberg (207)
  3. Mike Kaganski (165)
  4. Xisco Faulí (126)
  5. Gabor Kelemen (111)
  6. Rafael Lima (108)
  7. sdc.blanco (104)
  8. Regina Henschel (93)
  9. NISZ LibreOffice Team (93)
  10. Hossein (59)

Triaging

During 2022, 6,100 bugs were triaged by 391 people. Here are the top 10 bug triagers:

  1. Buovjaga (675)
  2. Dieter (462)
  3. Heiko Tietze (445)
  4. Xisco Faulí (354)
  5. Timur (327)
  6. raal (303)
  7. Julien Nabet (276)
  8. m.a.riosv (268)
  9. Rafael Lima (218)
  10. Mike Kaganski (207)

Bibisecting

Also, during 2022, the QA team performed 622 bibisects of regressions by 32 people. These are the top 10 bisecters:

  1. raal (144)
  2. Xisco Faulí (140)
  3. Timur (63)
  4. Aron Budea (57)
  5. Buovjaga (40)
  6. Stéphane Guillou (stragu) (24)
  7. Timur (20)
  8. Gabor Kelemen (19)
  9. Mike Kaganski (19)
  10. Telesto (18)

Like what we do? Support the LibreOffice project and The Document Foundation – get involved and help our volunteers, or consider making a donation. Thank you!

Welcome Khaled Hosny, new Developer at TDF

Khaled Hosny

The Document Foundation (TDF) is the non-profit entity behind LibreOffice, providing infrastructure and support for the community that makes the suite. Recently, TDF decided to expand its small team with a new Developer, focusing on improving LibreOffice’s language support. This will help to make the software more accessible to hundreds of millions of people around the world.

The new Developer is Khaled Hosny, so let’s hear from him…

Tell us a bit about yourself!

I’m a software developer based in Cairo, Egypt. My area of expertise is centered around written language; fonts, text layout in general and so-called “complex” text layout in particular (I don’t like how some text layout is signaled out as being complex – all text layout is complex, but some complexity is obvious right away while others are more subtle), PDF, and so on.

I have been involved with FOSS since 2006. I started with doing Arabic localization, then Arabic fonts, and a few years later I started programming to fix Arabic bugs (I think my first patch was to fix a right-to-left UI issue for Sugar, the desktop environment for the OLPC XO laptop, if anyone still remembers it). I contributed and continue to contribute to many FOSS projects – Firefox, GNOME, HarfBuzz, XeTeX, LuaTeX, to name some.

I got involved with LibreOffice in early 2011, and I have been lurking around since then.

I’m also a type designer and font engineer. I have designed and built a few Arabic and math fonts (I can’t read much of the math notation – I was taught math in Arabic notation and I hardly remember any of that either, but I’m fascinated by the 2D nature of math typesetting).

Funnily enough, I had no formal training in any of this, I actually graduated from medical school and worked as a doctor for few years before quitting to focus on a software career (I was already deep into localization and fonts while still at medical school).

Improved glyph positioning of artificial italic text in LibreOffice 7.5

Improved glyph positioning of artificial italic text, especially combining marks – implemented by Khaled in LibreOffice 7.5

 

What’s your new role at TDF?

I’m joining the team as a LibreOffice developer focusing on areas of right-to-left and the aforementioned so-called “complex” text layout. These are some of the underserved areas of LibreOffice development while disproportionately affecting a very large group of (existing and potential) users.

I hope my role at TDF will help to widen the LibreOffice community, attract more people to it, and make it accessible to more users.

What will you be working on?

I will be fixing bugs and implementing features related to right-to-left text layout and user interface issues which affect languages like Arabic, Hebrew, Persian, and Urdu, as well as text layout issues involving writing systems that require more involved text layout, like Arabic script, and the Indic group of scripts.

I will be also working on fonts, PDF export (text extraction from PDF is major pain point for many scripts), and related areas.

I’m also looking forward to mentoring new developers interested in working on any of these areas.

Do you have any tips for new developers, who’re eager to get involved with the LibreOffice codebase?

LibreOffice is a large code base and can be overwhelming, so try to read any existing documentation as much as possible, don’t be afraid to ask for help, and in general be patient.

We’re really happy to have Khaled on board! Follow this blog and our Mastodon and Twitter accounts for updates on his work – plus more news from the LibreOffice community.

Projects selected for LibreOffice in the Google Summer of Code 2023

GSoC logo

The LibreOffice Google Summer of Code projects have been selected for 2023.

  • Ahmed Gamal Eltokhy – Improve PGP/GPG encryption support: the project aims to enhance the experimental PGP/GPG encryption support in LibreOffice by addressing several shortcomings, such as the need to select recipients anew for every save and the difficulty in finding the right keys. The project will also focus on developing smart searching, traversing, and filtering capabilities for large keyrings, as well as adding asynchronous querying for improved performance.
  • Dipam Turkar – Convert Writer’s Java UNO API tests to C++: The unit tests for Writer’s UNO API which were forked from OpenOffice.org are still implemented in Java, which in the end test C++ code making it hard to debug them. LibreOffice has had a long term plan to move them to C++. The project will also focus on fixing the unit tests for errors, if any.
  • Baole Fang – Select tests to run on Gerrit patches based on machine learning: the goal is to implement a machine learning based test selection method to select tests to run in the continuous integration chain to reduce testing load.
  • Bayram Çiçek – Search field in Options: LibreOffice has a large and growing number of options and sometimes it is not easy to find the right one by searching them one by one. The goal is to implement a search field/functionality to the “Tools > Options…” dialog, so that we can find the right options easily.
  • Paris Oplopoios – Add APNG import/export support: APNG (Animated PNG) is an animated format backwards compatible with PNG. It is supported by all the major browsers and has benefits over GIF such as partial transparency and support for more colors. The goal of this project is to integrate APNG support in LibreOffice, which had been requested for quite some time.

Good luck to the contributors – we appreciate their work on these important features and improvements! And thanks to our mentors for assisting them: Tomaž Vajngerl (Collabora); Thorsten Behrens (allotropia); Andreas Heinisch; Heiko Tietze, Xisco Faulí, Stéphane Guillou, Hossein Nourikhah and Christian Lohmaier (The Document Foundation).

Between August 28 and September 4, contributors will submit their code, project summaries, and final evaluations of their mentors. Find out more about the timeline here, and check out more details about the projects on this page.

Press Releases

Announcement of LibreOffice 25.8.4

Berlin, 18 December 2025 – LibreOffice 25.8.4, the fourth minor update to the free office suite developed by volunteers for…

Open Document Format

Why open standards are extremely beneficial to end users

Whenever I talk to other technology users — including CTOs, CSOs and ICT managers, who in theory should have a…