# TranslatePDFOnline — AI-Powered PDF Translation > An online platform for translating PDF documents while preserving original layout. Supports 10 languages including English, Chinese, Spanish, French, German, Italian, Japanese, Korean, Russian, and Greek. ## Core Features - **OCR PDF Translation**: Upload scanned/image-based PDFs, automatic OCR → translate → export translated PDF with preserved formatting. - **10 Language Support**: Full bidirectional translation between all supported languages (zh, en, es, fr, it, el, ja, ko, de, ru). - **Credit-based Billing**: Pay per page. New users receive free trial credits. ## REST API - **POST /api/v1/translate** — Translate a PDF programmatically using an API key. - Authentication: Bearer token (`Authorization: Bearer `) or `X-API-Key` header. - Request body: `{ "document_id": "...", "source_lang": "en", "target_lang": "zh", "page_range": "1-10" }` - Response: `{ "task_id": "...", "status": "queued" }` - Rate limit: 60 requests/minute per API key. ## Tools - PDF to Text: https://translatepdfonline.com/pdf-to-text - Image to Text: https://translatepdfonline.com/image-to-text - JPG to Word: https://translatepdfonline.com/jpg-to-word - Photo to Word: https://translatepdfonline.com/photo-to-word - PDF to Word: https://translatepdfonline.com/pdf-to-word-doc - PDF to Markdown: https://translatepdfonline.com/pdf-to-md - Contract Comparison: https://translatepdfonline.com/contract-comparison ## Pricing - Pay-per-page: 10 credits/page. - Subscription plans: monthly, quarterly, semi-annual, annual. - Free trial credits for new users. ## Links - Home: https://translatepdfonline.com - OCR Translator: https://translatepdfonline.com/ocrtranslator - Pricing: https://translatepdfonline.com/pricing - API Documentation: https://translatepdfonline.com/docs/api - Blog: https://translatepdfonline.com/blog