O.Translator is an AI document translation service for PDF, Word, PowerPoint and EPUB files. It preserves the layout of the original document in supported formats, translates into more than one hundred languages with large language models, and offers terminology glossaries and online editing for consistent results. You can preview the translation and get a quote before paying, so the cost is known upfront. Pricing is usage-based with prepaid credits at roughly twenty thousand words per dollar, and a small trial is listed on third-party directories. It suits professionals translating contracts, reports and presentations without breaking their formatting, students working with foreign-language papers, and teams localizing documents where consistent terminology matters more than a quick machine translation. The online editor lets you fix terms and phrasing after translation, and the glossary keeps names and product terms consistent across a whole set of documents. Because you see a preview and a quote first, the cost of a long document is known before any payment.