# Font and PDF accessibility rights

The original SVGs request **DejaVu Sans**, with generic sans-serif fallback. `rsvg-convert` embeds/subsets installed DejaVu in the PDFs. The complete installed font notice is retained in [dejavu-font-copyright.txt](dejavu-font-copyright.txt); font rights are separate from the CC BY 4.0 SubjectNest text/diagram licence. PDFs have selectable text but are **untagged**, so use the [complete text and tactile alternatives](TEXT-ALTERNATIVES.md) for a dependable reading order. Rendering and PDF text extraction must be checked after regeneration.