VTT · AI Document Translation
Supports translation of PDF, Word, PPT, EPUB and other documents, covering 100+ languages. Preserves original formatting, preview partial translation and pricing first, then decide whether to translate the full text.
Translation and Document Processing
"Preview part of the document before translating the complete file. The preview range depends on the document and your available account credits. If the preview requires credits, the task page will display the cost before you proceed. Layout preservation depends on the file, fonts, and text length. Complex tables, scanned pages, and text in images may require manual review. Please check the partial preview before translating the complete document."
Understand Content, Preserve Usable Document Structure
WebVTT Standard Support
Strictly adheres to W3C standards. Retain the WEBVTT declaration in the file header to ensure browsers can correctly parse the translated file.
Layout and OCR
Layout preservation depends on the file, font, and text length. Complex tables, scanned pages, and text in images may require manual review. Please check the partial preview before translating the complete document.
Positioning Parameter Protection
Intelligently recognizes VTT positioning parameters (such as line:80%, align:center), translates only the text, and ensures subtitle position and layout remain unaffected.
Style Tag Support
Supports basic style tags within VTT (such as <b>, <i>, <u>), retaining these emphasis formats after translation to highlight key content.
Annotations and Metadata
Automatically recognizes NOTE comment blocks, allowing you to choose to keep or translate comment content for efficient developer maintenance.
Batch Processing
Supports uploading multiple VTT files at once for convenient batch processing of entire video courses or lecture series.
Why does format matter?
- Precise formatting is the hallmark of professionalism.
- Reduce secondary formatting time.
- Ensure accurate and precise information delivery.
Core translation scenarios
Reliably meeting every translation scenario
Online Education Platforms
Create multilingual subtitles for course videos on platforms like Coursera and Udemy, serving students worldwide.
Corporate Video Websites
Layout preservation depends on the file, font, and text length. Complex tables, scanned pages, and text in images may require manual review. Please check the partial preview before translating the complete document.
Streaming Media Service
Rapidly translate VTT subtitles for HLS or DASH streams to ensure OTT platform compliance.
Translation FAQs
Preview part of your document before translating the full file. The preview range depends on the document and your available account allowance. If a preview requires credits, the task page shows the cost before you continue.
Translation is billed in credits based on Tokens, a document analysis fee, and the selected mode. OCR and higher-tier models can change the cost. Check the task quote before confirming payment.
Unpaid documents are automatically deleted 15 days after task creation, and paid documents after 30 days. Download and back up your original and translated files before the retention period ends. You can also delete a task from your translation history.
Translate PDF, Word, PowerPoint, Excel, EPUB and other supported formats, with files up to 1GB. Check the full format list for the document you want to translate.
Translate between 100+ languages. See the available languages and choose your target language on the document translation page.
Yes. OCR reads text from scanned PDFs and images for translation. Recognition depends on scan quality and layout; use enhanced recognition for difficult pages and check the preview for missing or misread text.
Choose a standard or higher-tier model to suit your document. Check terminology, tone, and layout in a partial preview, then choose a mode for the full translation based on your needs and the quote. Any preview credits are shown on the task page.
Your document is processed to provide the translation, including by the selected third-party AI provider. Review our privacy policy for details about processing and retention.
Preview and Quote First
Preview part of your document before translating the full file. The preview range depends on the document and your available account allowance. If a preview requires credits, the task page shows the cost before you continue.
Upload to preview