Changelog

The video translation flow has been improved from upload to final download. Upload progress and failure feedback are clearer, so you always know what is happening.

• 🎥 Preview videos immediately after upload, with playback controls, a seek bar, and time display
• 📝 Edit subtitles on a timeline with current-line highlighting and automatic follow; the editor now works better on mobile
• 🎨 Choose from subtitle style presets and adjust font, color, size, and position
• 🔄 Switch between the original and translated video, show or hide subtitles, and download either version from the task list
• ⚡ Clearer uploads: see speed, estimated time remaining, and slow-connection notices; failed uploads explain the cause and can be retried

Built for formal documents you need to deliver. Premium Translation puts several AI agents to work together: page-by-page review, terminology locked across the whole file, and tables, contents and images faithfully restored — and you can keep refining after delivery in plain language.

• 🤝 Translator / Editor / Reviewer agents work together — a context-aware first pass followed by multiple review rounds for accuracy and natural phrasing
• 📐 1:1 layout restoration — tables, table of contents, image positions and font sizes are carefully preserved; scans are OCR'd first, then translated with the original layout intact
• 🔒 Terminology locked across the whole file; terms, numbers and missed segments are checked page by page for consistency in long documents
• ✍️ Refine after delivery in plain language (e.g. "use one translation for this term throughout") — the system re-renders the affected pages and keeps version history for comparison

AI-powered CAD / engineering drawing translation is live. Supports DWG and DXF, translates layer annotations and technical terminology while keeping layers, scale, and line work fully intact.

• 📐 One-click AI translation for DWG / DXF drawings — no manual redrawing required
• 🧱 Layers, scale, and line work stay intact after translation, so files remain editable in AutoCAD or any CAD software
• 🔤 Auto-detects and translates layer annotations, title blocks, drawing borders, and technical terminology
• ⚡ Batch upload supported — engineer-friendly for architectural, mechanical, and electrical drawings

Exciting news! We've rolled out a deep upgrade to the manga translation engine — targeted optimizations for manga and image-based content, with substantially improved translation quality overall.

• 🔍 More accurate text recognition and extraction: noticeably better detection of speech bubbles, SFX, and handwritten text
• 💬 More natural translation: output reads closer to native conventions in the target language, preserving tone and emotion
• 🖼️ Layout that hugs the original: post-translation fonts, sizes, and bubble fit auto-adapt to stay close to the source art
• ⚡ Batch upload for JPG / JPEG / PNG / ZIP and more — process an entire volume in one go

BelinDoc is committed to continuously improving the document translation experience. This release brings several practical updates.

• Fixed a batch of special document format processing issues reported by users, further improving overall translation quality and stability
• Added PDF to Markdown and PDF to EPUB conversion tools; available under Footer → Tools → More Tools
• Added a free PDF 'Flatten' tool to effectively reduce the 'double-layer text' issue that can appear after translation; available under Footer → Tools → More Tools
• Launched 1-day / 3-day / 7-day Pro membership options to meet more flexible usage needs

BelinDoc's video translation feature is officially launched! This time, beyond document translation, we've brought stronger multimodal capabilities and more accurate subtitle recognition.

• ✨ Brand New: Video Translation 🚀
• 🎙️ Video Voice Cloning & Multilingual Dubbing
• 📝 Smart Subtitle Editor
• 🎯 BelinDoc is committed to achieving the ultimate goal of 'making distances feel like neighbors' through more cutting-edge technology and more accessible pricing;

🌟 This Update Includes

• Added PDF post-translation editing: support layout adjustments and batch find/replace in translated text
• Optimized numerous recently reported layout preservation issues

🌟 This Update Includes

• Translation Workflow Feature Addition: Support for term extraction and translation style guide to enhance translation process reliability and control.
• Fix Comparison File Display Problem on X-axis Rotation: Now, comparison files are displayed correctly, preventing translation errors.
• Resolve Most Document Format Compatibility Issues: Now, most document formats are supported without compatibility problems.
• Add New Translation Style 'Chess': Support for chess game translation style.

New organization-exclusive pages, fixed document translation failures, optimized peak-time queue processing logic, and more

• Organization-exclusive pages: Centralized management of team translation quotas and document assets with flexible resource allocation support
• Fixed document translation failure issues: Optimized compatibility for various formats and resolved known bugs
• Optimized peak-time queue processing logic: Improved task distribution and timeout handling mechanisms during peak hours
• Optimized sharing link logic: Enhanced user experience with seamless binding for invited users
• Pre-configured custom translation document font writing logic: Foundation prepared for future custom font options
• Pre-configured translation content AI proofreading logic: Foundation logic prepared for AI proofreading of translation content

This update includes multiple feature optimizations and experience improvements, along with adjustments to free version benefits

• Increased file upload size limits: Pro/Max members can now upload PDFs up to 200MB / 500MB respectively
• Significantly improved translation speed: GPT-5 Mini translation performance optimized for faster and smoother document processing
• Accelerated comparison file generation: X-axis comparison file generation speed greatly improved, saving waiting time
• Enhanced download experience: Further improved download speed for translated result files
• Detail optimizations: Fixed recent document format preservation issues and EPUB document translation-related problems
• Free version benefits adjustment: Due to overall cost factors, Free version quota will change from daily 1000 pages to monthly 1000 pages. Low-frequency users can still easily meet daily needs, Pro/Max member benefits remain unchanged. Thank you for your understanding and support!

New batch document processing features, supporting batch upload and download, with EPUB bilingual comparison download after translation

• 📦 Now supports batch document upload and batch download of translation results by batch
• 📚 EPUB supports bilingual comparison version download after translation
• 🔧 Centralized optimization of recent feedback on document format processing issues

Introducing flexible payment options to unlock advanced translation models for professional-grade results, while staying true to our commitment to free service.

• 🚀 Added support for advanced translation models, delivering more accurate and professional translation quality.
• 💎 Launched Pro/Max membership plans for higher concurrency and priority queue access.
• 📦 One-time credit packs are now available, perfect for users with occasional high-volume needs.
• 🎯 Staying true to our mission, all users continue to receive 1000 free translation pages daily.

Newly released glossary feature, supports custom professional terminology, ensuring translation accuracy and consistency

• 📚 Added glossary settings, supports creating and managing professional terminology dictionaries
• 🎯 Pre-set standard glossary before translation, ensuring accuracy of professional terminology translation
• ⚡ Automatically apply glossary during translation process, improving accuracy of professional document translation

To ensure translation efficiency and stability, we have expanded our translation servers and optimized task allocation mechanisms

• ✅ Translation server expansion completed, improving overall translation processing capacity
• ✅ Maximum 10 concurrent translation tasks per user (including queued tasks) to ensure fair system resource allocation
• ✅ Dynamic adjustment of limits based on server load, but always ensuring task limits remain at least 10

Added sharing feature, invite friends to get extra translation quota and translation acceleration cards

• Added translation acceleration cards, stay ahead even during peak times
• Added email notification toggle for translation completion, results at your fingertips
• Optimized translation speed, shorter completion time

High-quality AI document translation tool officially launched, completely free, no login required, unlimited use

• 🎉 Belin Doc initial version release
• Easy operation
• Effortlessly handle PDF, DOCX, EPUB and other document formats