From PDF toaccessible books.
Turn any textbook into something every student can read, hear, see, and understand — audio, structured layouts, translations, and sign language, all built in.
Every accessibility feature, built in from page one.
ADT Studio takes one PDF and rebuilds it as a fully-editable, fully-yours accessible book — with the pieces that used to take a team of specialists.
Audio narration
Generate studio-quality text-to-speech for every page, with speaker control and per-language voices — no recording needed.
Translations
Ship the same book in every language you need. Translate text, captions and alt-text in one pass — review, edit, re-run.
Structured layouts
Recover headings, paragraphs, figures, tables and alt-text from the source PDF as real semantic HTML — built for screen readers.
Sign language
Attach sign-language video for ASL, LIBRAS and beyond — aligned to chapters and inspectable alongside the text.
Start from a PDF
Drop in a PDF to kick things off. ADT Studio organizes it into a new book project so you don't start from zero.
Pick a preset
Choose a preset that matches your content — textbook, storyboard, reference, or custom — and ADT Studio tailors the pipeline accordingly.
Run the pipeline
Configure each stage — extract, storyboard, layout — then let ADT Studio build the book. Review the output, correct anything that needs a human touch.
Edit & enrich
Layer on translations, text-to-speech, and a glossary — all inspectable, cacheable, reversible.
Export to a reader
Package the finished book with every accessibility feature baked in — ready for a kid to open, listen, and read along.
Watch a flat PDF become an accessible book.
An accessible book, ready to ship.
When the pipeline finishes, you get a clean bundle with every accessibility feature baked in — ready for a classroom, a publisher, or a kid on the couch.
- One book, every formatHTML, audio, translations and sign-language — exported together as a single package.
- Read on any deviceOpen in the reader, on the web, or hand the bundle off to an existing LMS.
- Always editableYour team stays in control. Every asset is a file you can re-run, replace or roll back.
Fresh off the press.
Here's what shipped in the latest version — and there are plenty more where this came from.
Your first accessible book starts here.
Drop in a PDF and watch it flow through every stage — from raw pages to an accessible reader. Free, open-source, runs on your machine.
- Extract
- Sectioning
- Storyboard
- Quizzes
- Captions
- Glossary
- Contents
- Language
- Speech
- Package