Layout-preserving document translation
Translate PDFs, Word, Excel, EPUB, and many other document types while preserving the original layout and formatting.
Overview
O.Translator is an online document translation platform for PDFs, Office files, EPUBs, and many other file types. Its main job is to translate documents while preserving layout, structure, and formatting so the result can be reused with minimal rework.
The site supports more than 100 languages and accepts individual files up to 1GB. It also includes OCR for scanned documents and images, a free preview before payment, and account access through Google sign-in or email verification.
Core capabilities
OCR for scanned files
Handle scanned PDFs and images with built-in OCR, plus an enhanced recognition mode for difficult scans and low-quality sources.
Preview-first workflow
Offer a free preview before payment, with the option to continue only after reviewing the result.
Tiered translation quality
Support standard and higher-tier translation models, including Professional and Expert levels for documents that need stronger contextual handling.
Terminology and online editing
Support custom term bases and online editing so teams can keep terminology consistent across projects.
Document security controls
Store files with encrypted transfer and private-cloud storage, and automatically delete completed files after 7 days unless removed earlier.
Practical use cases
Business document translation
Translate reports, presentations, spreadsheets, and ebooks while keeping the original structure intact for reuse or review.
Scanned file translation
Run scanned PDFs or image-based files through OCR when the text is not selectable, then translate the extracted content.
Previewing quality before purchase
Review a free preview before committing payment, which is useful when you want to check output quality on important documents first.
Collaborative localization work
Maintain terminology consistency across multiple translators by sharing projects and term bases inside a team workflow.
Higher-precision document handling
Choose a higher-tier model for documents such as academic papers or contracts that need stronger contextual accuracy.
Pros and Cons
Pros
- Preserves document layout and formatting across many common file types.
- Supports OCR for scanned PDFs and embedded images.
- Offers a free translation preview before payment.
- Covers more than 100 languages and more than 50 document formats.
- Provides team collaboration features such as shared projects and term bases.
Cons
- The public pages do not describe developer APIs or formal third-party integrations in detail.
- Higher-quality translation modes cost more than standard translation.
- The site uses a credit-based pay-as-you-go model, so pricing depends on document length and content type rather than a single flat fee.
FAQ
How does the translation workflow work?
You upload a document on the translation page, choose the source and target languages, and start the translation task. The site says you can review a free preview first and then pay only if you are satisfied.
Do I need to install software to use it?
The site states that files can be translated on the web without a separate desktop install. The translation page also supports Google sign-in or email verification for account access.
How many languages are supported?
The site supports mutual translation among over 100 languages worldwide, and the language selector is available after upload so you can choose from the supported options.
What file types and sizes are supported?
It supports individual files up to 1GB and more than 50 mainstream formats, including PDF, DOCX, XLSX, PPTX, EPUB, image files, subtitles, JSON, HTML, XML, and several audio formats. Scanned PDFs and images are handled with built-in OCR, with an enhanced recognition mode for difficult files.
How is pricing handled?
Pricing is pay-as-you-go with no monthly fees or binding contracts. Standard translation uses credits based on token count, scanned documents are priced using estimated tokens, and the site says the final cost is shown before payment.
Quick Facts
- Category
- Online document translation
- Platform
- Web app
- Source domain
- otranslator.com
- Languages
- 100+ languages supported
- Formats
- 50+ file formats supported
- Pricing
- Pay-as-you-go credits; no monthly fee
O.Translator 替代品
Immersive Translate
Immersive Translate 是一款双语 AI 翻译工具和浏览器扩展，可用于网站、PDF、字幕、会议、图片和漫画翻译。支持主流浏览器与多设备，提供上下文感知翻译和注重隐私的内容处理。
小艺
小艺是华为自主研发的 AI 智慧助手，支持知识问答、AI 写作、文档阅读、代码辅助与识图，适合日常查询、内容处理和鸿蒙开发场景，并支持文件拖放输入。
Prosed
Prosed 将现有创作者内容，如新闻通讯、帖子、视频和播客，整理成可直接发布的非虚构图书，支持手稿组装、章节审阅、编辑审核，并可导出为 PDF、ePub 或 DOCX。
OCR.chat
OCR.chat is a browser-based OCR and document chat tool for converting images, PDFs, Word files, and screenshots into editable text and structured outputs. It also lets users ask questions about finished documents, with answers cited to the source page.
Glarity
Glarity 是一款浏览器扩展，使用类 ChatGPT AI 总结并翻译网页、YouTube、PDF、搜索结果和邮件内容，帮助你更快阅读、研究与写作。
Altered
Altered is an AI voice changer and voice content creation platform for media production and live voice use. It combines voice morphing, text-to-speech, transcription, translation, cloning, and editing in one application.