Credits and licences
Last updated 3 November 2026
Files you create here are yours
We claim no rights in the files you upload or in the converted files we produce from them. You can use your results however your rights in the original allow. The fonts embedded in PDFs from EPUB to PDF are licensed for that, so you can print, share or sell those PDFs as far as the book's own copyright allows. See the terms of service.
Narration and transcription
Audio made by PDF to Audio, EPUB to Audio and the blog's audio reader is spoken by computer-generated (AI) voices from our speech provider, not by a person. If you publish narration made here, say that the voice is AI-generated. Transcripts are produced by automatic speech recognition and can contain errors.
Images on this website
The logo and graphics on this website are our own. The social-sharing preview image is generated by the site from text and shapes, with no third-party artwork or stock photos.
Software and fonts we use
| Component | Used for | Licence |
|---|---|---|
| Noto Sans | The typeface of this website (self-hosted) | SIL Open Font License 1.1 |
| DejaVu fonts | Typefaces embedded in PDFs made by EPUB to PDF (embedding is permitted) | Bitstream Vera / DejaVu licence (free) |
| Lucide icons | Icons on this website | ISC License |
| sharp and libvips | Image conversion | Apache License 2.0 / LGPL-2.1 |
| FFmpeg | Audio decoding and encoding, run on our servers | GNU GPL v3 |
| PDF.js | Reading text from PDFs | Apache License 2.0 |
| PDFKit | Creating PDFs | MIT License |
| Next.js, React, NestJS | The website and the API | MIT License |
Thank you to everyone who builds and maintains these projects.