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Terms of Use

TrustPDF is free, open-source software offered as is. Here is what that means.

Last updated: 8 November 2026

1. The service

TrustPDF (www.trustpdf.net) provides tools for working with PDF files that run entirely in your web browser. The service is operated by Martin Hostnik (see About) and is provided free of charge. By using the site you agree to these terms.

2. Your files

Your files are processed on your own device and are never sent to us. You remain the sole owner of your files and of anything you create with the tools. You are responsible for having the right to use and modify the files you process, and for checking the output before relying on it.

3. No warranty

The service is provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not guarantee that:

  • the tools will work with every PDF (for example, password-protected, damaged, or very large files);
  • the output will be free of errors or suitable for any specific use;
  • the site will be available at all times or free of interruptions.

Keep a copy of your original files. The tools create new files and never modify the originals, but you should verify every result.

4. Limitation of liability

To the fullest extent permitted by law, the operator of TrustPDF is not liable for any direct, indirect, incidental, or consequential damages, including loss of data, arising from your use of, or inability to use, the service. Nothing in these terms limits liability that cannot be limited by applicable law.

5. Acceptable use

You agree not to:

  • use the service for anything unlawful, including processing documents you have no right to use;
  • attempt to disrupt, overload, or gain unauthorised access to the site or its server;
  • scrape, mirror, or frame the site in a way that misrepresents its origin.

6. Open source licence

The TrustPDF source code is published under the GNU Affero General Public License v3.0 at github.com/mhostn3/trustpdf. You may use, study, modify, and self-host it under the terms of that licence. The TrustPDF name and logo are not covered by the licence; please do not present a modified copy as the official site. Third-party libraries (pdf-lib, fontkit, PDF.js, qpdf, Tesseract.js, Bootstrap, SortableJS) and the Noto Sans font are included under their own licences.

7. Third-party links

The site contains links to other websites, including affiliate links to Proton and a donation link to Buy Me a Coffee. We are not responsible for the content, products, or privacy practices of other sites. If you purchase a Proton plan through our links we receive a commission at no extra cost to you.

8. Changes and termination

We may change, suspend, or discontinue any part of the service at any time, and may update these terms by publishing a new version on this page. Continued use of the site after a change means you accept the updated terms.

9. Contact

Questions about these terms: info@koplemo.com. See also the Privacy Policy and Cookie Policy.