When you search for an online PDF tool, you often land on the same names: iLovePDF, Smallpdf, Adobe Acrobat… You've probably used them already. But one question is rarely asked before dropping a file: where is that file processed, by which provider, and under which law? Many online tools process your documents on their servers, and the answer varies from one service to another: you'll find it in their privacy policy and subprocessor list.
For occasional personal use — merging two PDFs, compressing a CV — it doesn't matter much. But for an SMB, a law firm, an accountant, or a freelancer handling contracts, payslips, or client documents, the choice of a PDF tool isn't trivial.
Here are 5 concrete reasons a European PDF tool like PDFly deserves your attention.
1. GDPR compliance isn't a sticker — it's an architecture
Every online service, European or American, claims GDPR compliance. The European regulation applies to any company processing data of EU citizens, regardless of where the company is based.
But "GDPR compliant" doesn't mean "shielded from the US Cloud Act." The CLOUD Act (2018) lets US authorities, through legal process, require a provider subject to US law — including through its European subsidiaries — to disclose data under its control, even if it's stored outside the United States. Including data about Europeans.
Concretely: if you entrust your company's sales contract to a service subject to US law, or one that relies on a US provider, US authorities can demand its disclosure, and you won't necessarily be informed.
A tool operated by a European company and hosted in Europe with a non-US provider falls, in principle, outside the scope of the Cloud Act. And a tool that never receives your files has nothing to disclose anyway — which is the next point.
2. Browser-side processing changes everything
PDFly goes further than just GDPR compliance: every tool available today runs 100% in your browser. Your PDFs never leave your machine.
When you merge two invoices on PDFly, here's what actually happens:
- The browser loads the tool's code, like any web page
- You drop your PDFs in the upload zone — they stay on your disk
- JavaScript merges the files in local memory
- You get the result with no data ever transiting through our servers
No "secure HTTPS upload," no "deletion within 24h": nothing to send, nothing to delete. Technically the strongest possible guarantee.
This architecture is enabled by modern libraries (pdf-lib, pdfjs) and the power of recent browsers. When a service asks you to upload your files for an operation a browser could perform alone, the question is worth asking: where do they go, and how long do they stay there?
3. Customer support that gets European context
When you have a problem with a deed of sale the day before a legal filing, you want to be able to write to someone who knows the European context: archiving formats like PDF/A, GDPR, administrative practices.
PDFly is an independent Belgian project: support is handled directly by the person who builds it, in French and English, from Europe, in European time zones. A question, a bug, a document that won't go through? Write to info@redesignapp.be.
4. Free, with no catch
PDFly is entirely free. No account to create, no ads, no tracking cookies, no resale of your data. The 12 tools available today run in your browser, so each use costs us nothing in server time — which is what makes "free" sustainable.
The only limits are there to protect your browser: files up to 100 MB each and up to 50 files per operation. Beyond that, the whole document would have to fit in your tab's memory, and the page could freeze — especially on a phone.
The tools that will need our servers (OCR, Office conversions, PDF/A…) are coming soon. They will be free too, with fair-use limits to keep the service sustainable and protected from abuse.
5. Data longevity goes through PDF/A
For documents that must stay readable in 10, 20, or 50 years (lease agreements, tax archives, administrative files), the PDF/A format (ISO 19005) has become a de facto standard imposed by many European administrations.
Adobe Acrobat offers PDF/A conversion. PDFly's PDF/A converter is coming soon: it will run on our servers in Paris, because the operation requires server processing (the browser alone can't guarantee ISO compliance), with files deleted immediately after processing. And it will be free, like everything else on PDFly.
In summary
Choosing a European PDF tool isn't an activist gesture — it's a choice of architecture, jurisdiction, and consistency with the nature of the documents you handle.
PDFly offers 12 free tools (merge, compress, JPG conversion, signing, etc.) that cover most daily needs, with no sign-up and no daily cap. Office conversions, OCR and PDF/A are coming soon — free as well, always EU-hosted, always under GDPR jurisdiction, always Cloud-Act-free.
Discover the free tools or see how PDFly works for businesses.