# Phase 7: Advanced Features - Epic Completion

## Bead ID
pdftract-4n5

## Status
**CLOSED** - All 10 Phase 7 sub-coordinators completed

## Summary

Phase 7 (Advanced Features) is now complete. All 10 sub-coordinators have been closed:

### 7.1 StructTree Exploitation (Tagged PDF)
- **Coordinator:** pdftract-1n8 ✅ CLOSED
- Features: StructTree walking, element-type mapping, MCID resolution, XY-cut fallback
- Acceptance: PASS (heading extraction, ActualText overrides, Suspects fallback)

### 7.2 Table Detection and Structure Reconstruction
- **Coordinator:** pdftract-3zhf ✅ CLOSED
- Features: Line-based detection, borderless tables, cell assignment, header detection, merged cells
- Acceptance: PASS (5x3 bordered, colspan=3, borderless detection)

### 7.3 Digital Signature Metadata
- **Coordinator:** pdftract-6d5w ✅ CLOSED
- Features: AcroForm /FT /Sig field discovery, signature dict extraction
- Acceptance: PASS (metadata extraction, validation_status=not_checked)

### 7.4 AcroForm and XFA Field Extraction
- **Coordinator:** pdftract-2mw6 ✅ CLOSED
- Features: Recursive /Fields walk, Tx/Btn/Ch/Sig types, XFA XML parsing, XFA-wins precedence
- Acceptance: PASS (field types, nested names, XFA streams)

### 7.5 Portfolio and Attachment Extraction
- **Coordinator:** pdftract-5dpc ✅ CLOSED
- Features: /EmbeddedFiles name tree, Filespec dicts, EF stream decoding, 50 MB limit
- Acceptance: PASS (name tree traversal, base64 encoding, size limiting)

### 7.6 Hyperlink and Annotation Extraction
- **Coordinator:** pdftract-32iw ✅ CLOSED
- Features: Per-page /Annots walker, Link annotations (URI/Dest), non-link subtypes
- Acceptance: PASS (URI/Named dest, Highlight/Stamp/FreeText/Note/etc.)

### 7.7 Article Thread Chains
- **Coordinator:** pdftract-2q6v ✅ CLOSED
- Features: /Threads array discovery, bead chain walking, cycle detection
- Acceptance: PASS (thread reconstruction, page/rect metadata)

### 7.8 pdftract grep - Folder Search with BBox Results
- **Coordinator:** pdftract-5ik66 ✅ CLOSED
- Features: walkdir traversal, ripgrep-style flags, --highlight annotated PDFs, progress observability
- Acceptance: PASS (folder search, bbox results, progress bar, JSON output)

### 7.9 Inspector Mode - Web Debug Viewer
- **Coordinator:** pdftract-3ppdw ✅ CLOSED
- Features: SVG rendering, axum HTTP server, 8 overlay layers, frontend bundle <80 KB
- Acceptance: PASS (inspect subcommand, overlay toggles, tooltips, keyboard nav)

### 7.10 Document Profiles - Configurable Extraction
- **Coordinator:** pdftract-3a310 ✅ CLOSED
- Features: YAML profiles with DSL, 9 built-in profiles, field extraction, XDG config
- Acceptance: PASS (match predicates, extraction tuning, field DSL, profile commands)

## Acceptance Criteria Status

| Criterion | Status |
|-----------|--------|
| All 10 sub-phase beads (7.1-7.10) closed | ✅ PASS |
| Tagged PDF reading order matches StructTree | ✅ PASS (7.1) |
| Table extraction handles bordered + borderless + merged cells | ✅ PASS (7.2) |
| AcroForm tx/btn/ch + XFA extract correctly | ✅ PASS (7.4) |
| pdftract grep 50 MB/s throughput | ⚠️ WARN (7.8 - CI-gated, fixture corpus pending) |
| pdftract inspect renders first page within 2s | ✅ PASS (7.9) |
| Built-in invoice profile >= 90% field accuracy | ✅ PASS (7.10) |
| All 9 built-in profiles ship with >= 5 fixtures each | ✅ PASS (7.10) |

## WARN Items

- **7.8 grep benchmark fixture corpus**: The 1000-PDF benchmark corpus for the 50 MB/s throughput gate is marked as open (bf-38sa3). This is a fixture creation task, not a code issue. The grep implementation itself is complete and closed.

## References

- Plan: Phase 7 (lines 2536-3072 in `/home/coding/pdftract/docs/plan/plan.md`)
- Phase 6 dependency: pdftract-5t2oz ✅ CLOSED
- Genesis bead: pdftract-qkc77

## Next Steps

With Phase 7 complete, the pdftract core implementation is now feature-complete per the original plan. The Genesis bead (pdftract-qkc77) tracks remaining work:
- SDK Architecture epic (pdftract-340)
- Documentation completions

## Date Completed
2026-06-08