Upload a PDF and get a reflowable EPUB with AI chat, flashcard generation, quizzes, and 5 reading modes. Not just a format change — a reading experience change.
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PDFs were built for printing — fixed pages, no flexibility, no way to ask questions in context. Convert yours into a format that works the way you actually want to read.
EPUBs automatically reflow to fit your screen. No more pinching and zooming on mobile.
Change fonts, text size, margins, and colors. Read in dark mode or sepia.
Chat with your book, generate quizzes, and use Focus Mode with converted EPUBs.
Our AI engine preserves chapters, headers, and formatting with high fidelity.
Fast AI-powered conversion. Upload and start reading quickly.
Your files are encrypted and deleted after conversion. We never share your data.
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Your converted EPUB is just step one. Open it in Chaptera and start asking it questions, generating quizzes, and remembering what you read — not just finishing it.