Add useEffect to check for in-progress translations on page load.
This ensures that if user navigates away during translation and
returns, the UI will resume polling and show completion status.
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Backend changes:
- Disable PP-Structure debug file generation by default
- Separate raw_ocr_regions.json generation from debug flag (critical file)
- Add visualization folder download endpoint as ZIP
- Add has_visualization field to TaskDetailResponse
- Stop generating Markdown files
- Save translated PDFs to task folder with caching
Frontend changes:
- Replace JSON/MD download buttons with PDF buttons in TaskHistoryPage
- Add visualization download button in TaskDetailPage
- Fix Processing page task switching issue (reset isNotFound)
Archives two OpenSpec proposals:
- optimize-task-files-and-visualization
- simplify-frontend-add-billing
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Backend changes:
- Apply background image + invisible text layer to all Direct Track PDFs
- Add CHART to regions_to_avoid for text extraction
- Improve visual fidelity for native PDFs and Office documents
Frontend changes:
- Remove JSON, UnifiedDocument, Markdown download buttons
- Simplify to 2-column layout with only Layout PDF and Reflow PDF
- Remove translation JSON download and Layout PDF option
- Keep only Reflow PDF for translated document downloads
- Clean up unused imports (FileJson, Database, FileOutput)
Archives two OpenSpec proposals:
- unify-direct-track-pdf-rendering
- simplify-frontend-export-options
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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add generate_translated_layout_pdf() method for layout-preserving translated PDFs
- Add generate_translated_pdf() method for reflow translated PDFs
- Update translate router to accept format parameter (layout/reflow)
- Update frontend with dropdown to select translated PDF format
- Fix reflow PDF table cell extraction from content dict
- Add embedded images handling in reflow PDF tables
- Archive improve-translated-text-fitting openspec proposal
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Co-Authored-By: Claude <noreply@anthropic.com>
Adds the ability to download translated documents as PDF files while
preserving the original document layout. Key changes:
- Add apply_translations() function to merge translation JSON with UnifiedDocument
- Add generate_translated_pdf() method to PDFGeneratorService
- Add POST /api/v2/translate/{task_id}/pdf endpoint
- Add downloadTranslatedPdf() method and PDF button in frontend
- Add comprehensive unit tests (52 tests: merge, PDF generation, API endpoints)
- Archive add-translated-pdf-export proposal
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Co-Authored-By: Claude <noreply@anthropic.com>
Implement document translation feature using DIFY AI API with batch processing:
Backend:
- Add DIFY client with batch translation support (5000 chars, 20 items per batch)
- Add translation service with element extraction and result building
- Add translation router with start/status/result/list/delete endpoints
- Add translation schemas (TranslationRequest, TranslationStatus, etc.)
Frontend:
- Enable translation UI in TaskDetailPage
- Add translation API methods to apiV2.ts
- Add translation types
Features:
- Batch translation with numbered markers [1], [2], [3]...
- Support for text, title, header, footer, paragraph, footnote, table cells
- Translation result JSON with statistics (tokens, latency, batch_count)
- Background task processing with progress tracking
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Major Features:
- Add PDF generation service with Chinese font support
- Parse HTML tables from PP-StructureV3 and rebuild with ReportLab
- Extract table text for translation purposes
- Auto-filter text regions inside tables to avoid overlaps
Backend Changes:
1. pdf_generator_service.py (NEW)
- HTMLTableParser: Parse HTML tables to extract structure
- PDFGeneratorService: Generate layout-preserving PDFs
- Coordinate transformation: OCR (top-left) → PDF (bottom-left)
- Font size heuristics: 75% of bbox height with width checking
- Table reconstruction: Parse HTML → ReportLab Table
- Image embedding: Extract bbox from filenames
2. ocr_service.py
- Add _extract_table_text() for translation support
- Add output_dir parameter to save images to result directory
- Extract bbox from image filenames (img_in_table_box_x1_y1_x2_y2.jpg)
3. tasks.py
- Update process_task_ocr to use save_results() with PDF generation
- Fix download_pdf endpoint to use database-stored PDF paths
- Support on-demand PDF generation from JSON
4. config.py
- Add chinese_font_path configuration
- Add pdf_enable_bbox_debug flag
Frontend Changes:
1. PDFViewer.tsx (NEW)
- React PDF viewer with zoom and pagination
- Memoized file config to prevent unnecessary reloads
2. TaskDetailPage.tsx & ResultsPage.tsx
- Integrate PDF preview and download
3. main.tsx
- Configure PDF.js worker via CDN
4. vite.config.ts
- Add host: '0.0.0.0' for network access
- Use VITE_API_URL environment variable for backend proxy
Dependencies:
- reportlab: PDF generation library
- Noto Sans SC font: Chinese character support
🤖 Generated with Claude Code
https://claude.com/claude-code
Co-Authored-By: Claude <noreply@anthropic.com>
Backend fixes:
- Fix markdown generation using correct 'markdown_content' key in tasks.py
- Update admin service to return flat data structure matching frontend types
- Add task_count and failed_tasks fields to user statistics
- Fix top users endpoint to return complete user data
Frontend fixes:
- Migrate ResultsPage from V1 batch API to V2 task API with polling
- Create TaskDetailPage component with markdown preview and download buttons
- Refactor ExportPage to support multi-task selection using V2 download endpoints
- Fix login infinite refresh loop with concurrency control flags
- Create missing Checkbox UI component
New features:
- Add /tasks/:taskId route for task detail view
- Implement multi-task batch export functionality
- Add real-time task status polling (2s interval)
OpenSpec:
- Archive completed proposal 2025-11-17-fix-v2-api-ui-issues
- Create result-export and task-management specifications
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
