LingoBound is an AI translator for books, manuscripts and long documents. Its chapter-aware workflow uses a shared glossary to help carry names and recurring terms across a book. Upload EPUB, DOCX, TXT or a supported PDF, then compare the source and translation in a bilingual reader. An eligible free chapter sample is available after sign-in, with limits; paid access unlocks the complete book. Download the translation as a rebuilt EPUB, PDF or TXT. Exports contain translated text only and do not preserve original layouts, images or tables. Review AI output before publication or other important uses.