1b5c7f39a8
Key fixes: - Skip large vector_graphics charts (>50% page coverage) that cover text - Fix font fallback to use NotoSansSC for CJK support instead of Helvetica - Improve translated table rendering with dynamic font sizing - Add merged cell (row_span/col_span) support for reflow tables - Skip text elements inside table bboxes to avoid duplication Archive openspec proposal: fix-pdf-table-rendering 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
19 lines
889 B
Markdown
19 lines
889 B
Markdown
# Change: Fix PDF Table Rendering Issues
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## Why
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OCR track PDF exports have significant table rendering problems:
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1. **Reflow PDF** (both translated and untranslated): Tables are misaligned due to missing row_span/col_span support
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2. **Translated Layout PDF**: Table borders disappear and text overlaps because it doesn't use the accurate `cell_boxes` positioning
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## What Changes
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- **Translated Layout PDF**: Adopt layered rendering approach (borders + text separately) using `cell_boxes` from metadata
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- **Reflow PDF Tables**: Fix cell extraction and add basic merged cell support
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- Ensure embedded images in tables are rendered correctly in all PDF formats
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## Impact
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- Affected specs: result-export
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- Affected code:
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- `backend/app/services/pdf_generator_service.py`
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- `_draw_translated_table()` - needs complete rewrite
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- `_create_reflow_table()` - needs merged cell support
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