Every year, on the last Wednesday in March, the open-source community celebrates Document Freedom Day. It’s an excellent opportunity to pause for a moment and ask a question that seems technical but is actually deeply political: who controls your documents?
The answer depends almost entirely on the file formats you use.
A freedom that is easy to overlook
When you write a letter, draft a report or create a spreadsheet, you are producing something that belongs to you: your words, your data, your work. But if that content is locked into a proprietary format, whose specifications are controlled by a single vendor, subject to change without notice and readable only by software that vendor chooses to certify, then your ownership is, at best, conditional.
Open document standards exist to remove this restriction. Open Document Format (ODF), the ISO standard adopted by LibreOffice and the wider free software ecosystem, ensures that your documents remain yours: today, tomorrow and twenty years from now, regardless of the software vendor or subscription model.
This is no minor convenience. It is a structural guarantee of autonomy.
The political dimension
Document Freedom Day is not just a celebration for developers and system administrators. It is a reminder that the documents underpinning the infrastructure of public communication, and their format, carry political weight.
When a public authority sends a document in a format that requires proprietary software to open correctly, it is making a biased technical choice, and is implicitly imposing the use of a specific vendor’s product at the citizen’s expense. When a school requires all pupils to submit assignments in a format tied to proprietary software, it is normalising dependence from a very young age.
Open standards break this chain of dependency, and transform the document – and the information it contains – into a shared resource that no single actor can control.
A step forward to celebrate
This year there is another reason to celebrate: the Deutschland-Stack, which makes ODF and PDF/UA standards mandatory in public administration. And this is not a pilot project or a recommendation, but a binding requirement based on the recognition that digital sovereignty begins with the formats a state uses to carry out its work.
Germany’s move is significant not only in itself, but also as a signal to other European governments that the issue has been resolved. ODF is mature, interoperable and ready for large-scale institutional implementation, so the question is no longer whether open standards work, but how much longer other administrations can justify not using them.
What still needs to be done
Progress is real, but the work is far from finished. Proprietary formats still dominate much of the public sector, education and business environments across all continents. Interoperability remains a daily struggle for users who receive documents that do not display correctly with free software, not because ODF is deficient but because some vendors continue to treat format compatibility as a competitive weapon rather than a public asset.
The FOSS community has a fundamental task: to produce the best possible implementations, document migration paths, support public administrations in the transition, and present the political argument clearly and without excuses. The choice of format is not a preference; it is a political decision with long-term consequences for democratic access to information.
A reason to keep going
Document Freedom Day reminds us all that the infrastructure of a free society must be built on open foundations. The use of LibreOffice in public administration, ODF requirements in procurement policies, and citizens being able to open a government document without having to buy a proprietary software licence are not small victories, but the gradual construction of a digital public space that belongs to everyone.
This deserves to be celebrated. And then back to work.
The Document Foundation supports Document Freedom Day and the global campaign for truly open document standards. To find out more, visit The Document Foundation’s website.