From PDF to accessible books.
Narration, easy-read, translations, sign language, quizzes and more, generated from any textbook. Bring your own AI: OpenAI, Claude, Gemini or Ollama, or sign in with Codex and Claude Code. Free, open source, runs on your computer.
macOS · Windows · Linux · DockerAGPL-3.0, no account required
Every book, every learner.
One PDF in, one accessible digital textbook out. Readers switch on what they need; nothing is an afterthought bolted on later.
- ListenNatural text-to-speech with word-by-word highlighting, timed page by page.Watch
- Easy-readSimplified text for lower reading levels, kept side by side with the original.Watch
- TranslateThe same edition in every language you need, including captions and alt text.
- Sign languageSign-language video linked to each section, searchable while you assign it.Watch
- CaptionsDescribed visuals and image alt text for every figure in the book.
- QuizzesComprehension checks and drag-and-drop activities, generated per section.Watch
- GlossaryKey terms defined in place, with manual additions where you need them.
- ContentsA navigable table of contents, generated from the book's real structure.
- WCAG validatedReal MathML, semantic HTML and a validation pass before every export.Watch
Watch a flat PDF become a book that reads itself.
Real textbooks, before and after. Every clip is the exported book running in a browser, exactly as a student would open it.
Real books, before & after
Three real textbooks (Cuaderno 5, Momo and Katko) turned from flat PDFs into accessible interactive books.
Real books, before & after
Three real textbooks (Cuaderno 5, Momo and Katko) turned from flat PDFs into accessible interactive books.
Three moves. Every step inspectable.
A pipeline of ten stages does the heavy lifting. You review, correct and re-run any of them; nothing is overwritten and unchanged steps come back from cache instantly.
- 01
Add a PDF
Drop in a textbook or storybook and pick a preset. ADT Studio extracts text, images, math and layout into a real structure.
- 02
Run the pipeline
Ten stages, each a versioned, cached step you can inspect down to the prompt and the answer the model gave.
- Extract
- Sectioning
- Storyboard
- Quizzes
- Captions
- Glossary
- Contents
- Language
- Speech
- Package
- 03
Export and share
Package the book with every accessibility feature baked in, validated against WCAG, ready for any browser or reader.
- WebOpens in any browser, no install
- EPUBE-readers, tablets and phones
- WebPubReadium-compatible publications
- PNLD .zipBrazil's national textbook program
Your AI, your choice.
ADT Studio doesn't sell you a model. Sign in with the subscription you already have, bring an API key, or run a model locally. Switch any time; your books don't care.
Use the coding-agent plan you already pay for. No API key needed.
- Codex
- Claude Code
Start with the book on your desk.
Install in a minute, connect the AI provider you already pay for, and convert your first PDF today. Free and open source.
Available for macOS · Windows · Linux
Built to be trusted with children's books.
Accessibility work is careful work. ADT Studio is designed so you can always see what changed, why, and undo it.
Runs on your computer
Books, prompts and API keys stay on your machine. A book is one folder you can zip and hand to a colleague.
No black boxes
Every AI call is logged with its prompt, answer and cost, and you can open any of them from the stage that produced it.
Nothing is overwritten
Each edit creates a new version. Roll back any stage, any page, any time, and re-run with unchanged inputs served from cache.
Free and open source
Licensed AGPL-3.0 and developed in the open with UNICEF. Read the code, file an issue, ship a fix.
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