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LibreOffice handles different input and output formats, and also displays text and graphics alongside inside the GUI on computer displays. This requires LibreOffice to understand various different measurement units, and convert values from one to another.
The unit conversion can be done manually, where one should know the units, and calculate factor to convert them to each other.
For example, consider that we want to convert width from points into 1/100 mm, which is used in page setup.
We know that:
1 point = 1/72 inch
1 inch = 25.4 mm = 25400 microns
factor = 25400/(72*10) ≈ 35.27777778
Then, it is possible to write the conversion as:
static int PtTo10Mu( int nPoints )
{
return static_cast<int>((static_cast<double>(nPoints)*35.27777778)+0.5);
}
A separate function that casts integer nPoints to double, then multiplies it by the factor which has 8 decimal points, and then rounds the result by adding 0.5 and then truncates it and stores it in an integer. This approach is not always desirable. It is error-prone, and lacks enough accuracy. For big values, it can calculates values off by one.
Another approach is to use o3tl (OpenOffice.org template library) convert function. It is as simple as writing:
int nResult = o3tl::convert(nPoint, o3tl::Length::pt, o3tl::Length::mm100)
As you can see, it is much cleaner, and gives the output, properly rounded as an integer!
You need a double? No problem! You can use appropriate template to achieve that:
double fResult = o3tl::convert<double>(nPoint, o3tl::Length::pt, o3tl::Length::mm100)
These are the supported units, defined in the header include/o3tl/unit_conversion.hxx:
mm100 – 1/100th mm = 1 micron
mm10 – 1/10 mm
mm – millimeter
cm – centimeter
m – meter
km – kilometer
emu – English Metric Unit (1/360000 cm)
twip – Twentieth of a point (1/20 pt)
pt – Point (1/72 in)
pc – Pica (1/6 in)
in1000 – 1/1000 in
in100 – 1/100 in
in10 – 1/10 in
in – inch
ft – foot
mi – mile
master – PPT Master Unit (1/576 in)
px – Pixel unit (15 twip, 96 ppi)
ch – Char unit (210 twip, 14 px)
line – Line unit (312 twip)
If you are doing a conversion, it is possible that the result overflows. With o3tl::convert() you can handle it this way:
sal_Int64 width = o3tl::convert(nPoint, o3tl::Length::pt, o3tl::Length::mm100, overflow, 0);
if (overflow)
{
...
}
Using o3tl::convert() not only simplifies the unit conversion, but it also improves the accuracy. There is a possibility to handle overflow, which is not easily possible if you do the conversion manually. Therefore, unit conversion using this function is usually the best option in LibreOffice.
The LibreOffice Conference will start in a week from today with the Community Meeting, at the Faculty of Informatics of ELTE (Eötvös Loránd University) in Pázmány Péter stny. 1/C, 1117 Budapest. The building is just in front of the Danube on the historic Buda side, and can be easily reached either by walking or by public transportation from the city center in Pest, where you can find the majority of hotels and restaurants.
To reach the city from the airport, take Bus 100E which goes directly to downtown (Deák Ferenc tér). Buy and validate tickets directly on the bus using your bank card for the Budapest Pay&GO service. bkk.hu/en/travel-information/airport-express/
Inside the city use public transport (BKK): metro, tram, bus. Buy tickets from purple machines or use the BudapestGO mobile app (iOS, Android). bkk.hu/en/ The best deal is a 24h / 72h travel pass, which does not need validation at each trip. IMPORTANT: the travel pass is not valid for the airport bus!
Currency is Hungarian Forint (HUF). Cards are accepted almost everywhere, but also you may need some Forint cash from Correct Change, Exclusive Change, or Gold Change. Avoid Euronet ATMs, use instead ATMs at major Hungarian banks like OTP, K&H, Erste, UniCredit, Raiffeisen, or CIB.
Time zone is CEST (UTC+2). Electricity is 230V, with standard European plug.
The Survival Guide with more information will soon be available on the Conference website.
Juan Carlos Sanz, a long time contributor to OpenOffice and LibreOffice, and a TDF Member, passed away last Friday, August 22. He has been contributing to documentation and localization in Spanish, and has been active in the forums to help LibreOffice users as much as he could.
In July 2022, Juan Carlos was interviewed by Mike Saunders for the Community Member Monday. In 2022, he also attended the LibreOffice Conference in Milan (2022) and Bucharest (2023).
One week ago, we announced LibreOffice 25.8, our brand new major release. It’s packed with new features, and has many improvements to compatibility and performance too. So, what has happened in the week since then? Let’s check out some stats…
These are just stats for our official downloads page, of course – many Linux users will have acquired the new release via their distribution’s package repositories.
Combining our Mastodon, Bluesky, X/Twitter and Facebook posts about the announcement, and all the likes, shares, views and comments, we get 23,999. Thanks to everyone who spread the word on social media! 
On release day, we posted the announcement on the /r/linux subreddit. There was lots of discussion there about the new update, including things users like and things that could still be improved.
Huge thanks to our worldwide community of volunteers, and certified developers, for all their work on this release!
Eduardo, hijo de Juan Carlos, no ha hecho saber que el pasado 22 de agosto su padre falleció como consecuencia de la enfermedad con la que llevaba varios años luchando.
Juan Carlos ha sido colaborador de larga data de OpenOffice.org …
Today we’re talking to Olivier Dufailly, who’s working on PyPos3DLO, an app based on LibreOffice to create mechanical characters, edit and optimize Poser files, and manipulate WaveFront files:
I live in Toulouse (France) and for around 30 years I’ve mainly worked in the space and aeronautical domain (from software to system engineering), although I was also a business manager for a few years, and the first CIO of a mid-size engineering company. But now, I’m back in my preferred domain: space systems engineering and development. It’s a so exciting environment.
On a personal side, I like and practice sports (swimming, biking, running) and 3D modeling. I remember, when I bought my first Casio graphic tracer in 1985, I immediately ported some Apple BASIC 3D curves programs to Casio BASIC!
And now, I always like to produce some airplanes models for 3D rendering (unfortunately, the former free site ShareCG.com has disappeared so I need to find a way to publish my work elsewhere). Additionally, I think that we – all of us – are responsible of our children’s planet, and open source software is sustainable and so is vital to help us in the future.
I’ve produced a LibreOffice-based application to help 3D mechanical characters development. I’d would be proud to present it in more detail later, but for now: PoJamas aims to provide a Python library and tools for loading, processing, and producing .cr2, pz3 (crz, pzz) files compatible with the SmithMicro (e-Frontier) Poser character animation application. It includes PyPos3DLO, an app based on LibreOffice to create mechanical characters, and edit and optimize Poser files.
LibreOffice is a great project and I’d like to try to contribute to its development. It’s just the beginning, but I feel welcome in the project already.
I have a strategic approach concerning LibreOffice and general engineering usage.
In my professional and personal domains, engineers, PhD, techs guys produce studies and data for testing and running large and complex systems. To do this, they usually use Microsoft Office with a huge amount of BASIC macros. Moreover, they also use MATLAB and try to integrate or automatize things.
They usually have a lot of “integration” problems and the result is frequently a mess: hard to use, and more or less impossible to maintain or transfer. It’s a lack of experts’ time, when they spend too much time o “silly” development instead of doing their own business.
Our main problems are testing, maintainability and costs.
Finally, I’m convinced that we should promote a new maintainable approach for engineering studies with a better integration of Python (or other, if any languages) in LibreOffice. (Financial studies may be also greatly enhanced with an easy integration between Python libraries and …
En un momento en el que las tensiones geopolíticas, las leyes de localización de datos y los riesgos de cumplimiento normativo están transformando el panorama de las tecnologías de la información, LibreOffice 25.8 (lanzado la semana …
LibreOffice 25.8: a Strategic Asset for Governments and Enterprises Focused on Digital Sovereignty and Privacy
Overview
In a time when geopolitical tensions, data localization laws, and compliance risks are reshaping the IT landscape, LibreOffice 25.8 (released last week) stands out as a strategic choice. It’s a fully open source, locally run productivity suite designed for organizations that require full control over their software, data, and infrastructure.
This version builds directly on priorities voiced by public administrations and large enterprises worldwide: protecting user data, reducing dependency on foreign vendors, and strengthening digital autonomy.
Why Digital Sovereignty Matters
For governments and enterprises, digital sovereignty is about more than philosophy. It’s about:
LibreOffice 25.8 is purpose-built for these goals.
Key Benefits in LibreOffice 25.8 for Institutions
Privacy-First Architecture
Open Standards & Interoperability
Flexible Deployment & Integration
Strategic Advantages for Public and Enterprise IT
Real-World Adoption
Governments and large institutions across Europe, Latin America, and Asia have adopted LibreOffice as part of digital sovereignty initiatives. Government bodies in Germany, Denmark and France, and national ministries in Italy and Brazil, have turned to LibreOffice to reclaim control over their digital infrastructure.
LibreOffice is backed by The Document Foundation, a neutral, non-profit steward with a global contributor base, not a private corporation with conflicting interests.
Conclusion
LibreOffice 25.8 is more than a productivity tool. It’s a vehicle for strategic IT independence. With no data collection, no vendor lock-in, and complete local control, it’s ideally suited for:
It’s time …
Get a quick overview of some of the new features in LibreOffice 25.8, released on Wednesday. (This video is also available on PeerTube).
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LibreOffice no incluye inteligencia artificial (IA) de serie. Sin embargo, muchos usuarios desean contar con esas funciones, por lo que animamos a los desarrolladores a que las ofrezcan como extensiones opcionales. Y eso es lo que ha hecho Igor Támara, …
Berlin, 20. avgust 2025 – TDF (The Document Foundation) objavlja izid izdaje LibreOffice 25.8. Ta najnovejša različica brezplačnega odprto-kodnega pisarniškega paketa, ki je vodilni na trgu, se še naprej osredotoča na digitalno suverenost in zaščito zasebnosti Posameznikom, organizacijam in vladam ponuja popoln nadzor nad njihovimi podatki in najobsežnejša orodja za produktivnost.
V globalnem kontekstu naraščajoče zaskrbljenosti glede zasebnosti podatkov, zaklepanja v oblaku in kapitalizma nadzorovanja ravno LibreOffice 25.8 ponuja konkretne rešitve.
Odprta koda: Izvorna koda je na voljo za pregled in je popolnoma brez lastniških tehnoloških omejitev.
Zasebnost in nadzor: LibreOffice ne zbira osebnih podatkov, metrik uporabe ali diagnostičnih informacij in je v skladu s predpisi o varstvu podatkov, ki jih zahtevajo implementacije javne uprave (GDPR).
Krajevno izvajanje: vse funkcije se izvajajo krajevno na uporabnikovem računalniku, brez potrebe po internetni ali oblačni povezavi.
Sodelovanje ob lastnem gostovanju: integracija s krajevnimi rešitvami v oblaku, kot je Nextcloud, omogoča ekipam, da sodelujejo, ne da bi delile svoje informacije z velikimi tehnološkimi podjetji.
Uporabniški vmesnik: pogovorno okno Dobrodošli/Novosti zdaj ponuja dostop do izbirnika uporabniškega vmesnika in možnosti videza, kar novim uporabnikom omogoča, da izkoristijo prilagodljiv uporabniški vmesnik LibreOffice in prilagodijo videz in uporabnost glede na svoje želje.
Zmogljivost: vse je hitrejše, od zagona do pomikanja po velikih dokumentih – z znatnim povečanjem hitrosti na manj zmogljivih računalnikih.
Boljša medopravilnost z datotekami Microsoft Office, z natančnejšo obdelavo datotek DOCX, XLSX in PPTX ter manj težav z oblikovanjem, zahvaljujoč spremembam, kot so:
Seveda ponuja tudi druge pomembne nove funkcije, kot je možnost izvoza v zapisu PDF 2.0 in več novih storitev knjižnice ScriptForge. Seznam vseh novosti se nahaja tukaj: https://wiki.documentfoundation.org/ReleaseNotes/25.8/sl
Kar zadeva spremembe podpore za operacijske sisteme, LibreOffice 25.8 ne bo več deloval v sistemih Windows 7, 8/8.1 ali (32-bitnih) različicah x86. To je tudi zadnja različica, ki jo lahko izvajate na macOS 10.15.
Organizacija TDF sodeluje z globalno mrežo certificiranih partnerjev, ki nudijo podporo in vzdrževanje za poslovno rabo v podjetjih, prilagojene funkcije in integracije ter pomoč pri migraciji in usposabljanju uporabnikov. Celoten seznam partnerjev najdete tukaj: https://sl.libreoffice.org/po-pomoc/profesionalna-podpora/
The best open source office suite continues to evolve, while maintaining its focus on privacy and digital sovereignty
Berlin, 20 August 2025 – The Document Foundation announces the release of LibreOffice 25.8. This latest version of the market-leading free open source office suite maintains its focus on digital sovereignty and privacy protection. It offers individuals, organisations, and governments total control over their data and the most comprehensive productivity tools.
In a global context of growing concern about data privacy, cloud lock-in, and surveillance capitalism, LibreOffice 25.8 provides concrete solutions.
Open Source: The source code is available for inspection and is completely free from proprietary technology constraints.
Privacy and Control: LibreOffice does not collect personal data, usage metrics or diagnostic information, and complies with the data protection regulations required by public administration implementations (GDPR).
Local Execution: all features are executed locally on the user’s computer, without the need for an internet or cloud connection.
Self-Hosted Collaboration: Integration with on-premises cloud solutions, such as Nextcloud, enables teams to collaborate without sharing information with Big Tech.
User Interface: the Welcome/What’s New dialog now offers access to the user interface picker and appearance options, allowing new users to leverage LibreOffice’s flexible UI and personalise the look and feel according to their preferences.
Performance: everything is faster, from startup to scrolling through large documents – with significant speed improvements on less powerful machines.
Better Interoperability with Microsoft Office files, with more accurate handling of DOCX, XLSX and PPTX files and fewer formatting issues, thanks to changes such as:
There are, of course, other important new features, such as the ability to export to the PDF 2.0 format, and several new ScriptForge library services. The complete list is available here: wiki.documentfoundation.org/ReleaseNotes/25.8.
In terms of operating system support changes, LibreOffice 25.8 will no longer run on Windows 7 or 8/8.1 versions. It is also the last version to run on macOS 10.15. Support for x86 (32-bit) Windows versions is deprecated.
The Document Foundation collaborates with a global network of certified partners who offer enterprise-grade support and maintenance, customised features and integrations, and assistance with user migration and training. A full list of partners can be found here: www.libreoffice.org/get-help/professional-support/.
LibreOffice 25.8 is completely free and offers a viable alternative to proprietary office suites for individual users, schools, businesses, and public institutions. It contains no advertising, data tracking, or subscriptions.
It is ideal for students and teachers who …
La mejor suite ofimática de código abierto sigue evolucionando sin perder de vista la privacidad y la soberanía digital
Berlín, 20 de Agosto de 2025 – The Document Foundation ha anunciado el lanzamiento de LibreOffice 25.8. Esta última versión de …
LibreOffice does not include artificial intelligence (AI) out-of-the-box. But many users want AI features in the suite – so we encourage developers to make them available as optional extensions. And that’s what Igor Támara did, creating the “Stable Diffusion for LibreOffice” extension for AI-generated images powered by AI Horde (a volunteer crowd-sourced distributed cluster of image generation workers).
We talked to Igor about the extension – here’s what he had to say:
You write some text describing an image, and get an AI image generated from the given text. You can tweak parameters, choose a model and use the best result on written documents, presentations or the place you prefer. The images are generated on volunteer GPUs through AI Horde.
Two weeks ago, starting from a Gimp plugin as a base. I’m brand new to the LibreOffice project, and started it as a macro to get this functionality in the software. One week later I put it on GitHub.
Later on I got help from friendly people on the forum to turn it into an extension. I also joined the the chat and filled some requests in the bug tracker.
Be aware that the text you provide is sent to AI Horde and seen by the machines that create the image, so do not send sensitive data. Also, you can get better results if you send the description of the desired image in English. You are encouraged to try different languages to see the results.
You need internet connection to use it. If you wanted to create images locally on your machine, it would take time to configure your environment with local AI models, with gigabytes of memory dedicated to this purpose, and maybe processing for hours to get something useful.
Sometimes the text can be marked as NSFW (“not safe for work”) – in which case you end up with black and white text saying so.
For now, the extension works in Writer and Impress; when invoked from other LibreOffice components, it opens a new text document and inserts the image along with the provided text.
The roadmap includes:
Report any problems you find, and help to translate into your language. Please do so by filling an issue with your intention saying which language.
If you have a GPU (and good graphics hardware in general), you can volunteer as a worker joining the horde, to add to the computing power – and you can earn kudos to have higher priority when you need it.
If you work with a friendly company that wants to make use of the existing hardware, you can join the horde too …
En el mundo digital, los formatos de documentos son esenciales. Los formatos privativos, como DOCX de Microsoft Word o XLSX de Excel, dominan el lugar de trabajo, pero al mismo tiempo obligan a los usuarios a utilizar un proveedor específico …
In the digital world, document formats are essential. Proprietary formats such as Microsoft Word’s DOCX or Excel’s XLSX dominate the workplace, but at the same time they lock users into a specific vendor and its business strategies, which tend to exploit users to the maximum in every way. The Open Document Format (ODF) offers an open, standard alternative that protects users and their privacy, promotes interoperability, long-term access and data ownership.
Migrating documents from proprietary formats to ODF is the solution, and although vendors who rely on proprietary formats – not only Microsoft, but also its freeware clones such as OnlyOffice or WPS Office – do everything they can to prevent it, it is very easy and represents a fundamental step forward for users in terms of privacy and digital sovereignty (i.e., ownership of their own content).
This guide breaks down the migration process to make the transition smooth, efficient and sustainable, both at the individual level (where problems are virtually non-existent) and at the enterprise level, where problems exist due to the lock-in strategies of proprietary formats.
Step 1: Understand ODF and its advantages
Step 2: Document inventory to define conversion priorities and estimate the effort required for migration
Step 3: plan the migration workflow
Step 4: Converting documents to ODF format
Step 5: Monitoring the migration
Conclusion
Migrating from proprietary formats to ODF is a strategic move, both individually and for businesses, towards openness, content control and document protection for the future. In a business environment, it requires careful planning and user involvement, but the benefits in terms of flexibility, interoperability and cost savings are well worth the effort.
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