Ryan Malloy
f68e1b77d3
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Dynamic XFA forms — real-estate forms, mortgage forms, government forms —
have been a silent failure mode for every tool in this server: the layout
and fields live in an XFA program that only Adobe's runtime executes, so
PyMuPDF/pdfium/MuPDF only see the "Open in Adobe Reader" placeholder page.
extract_form_data returned "document closed", convert_to_images returned
the placeholder, analyze_pdf_health reported total_pages=1 — all
correctly per the visible PDF, but all misleading about what the form
actually contains.
New capabilities:
- src/mcp_pdf/xfa.py — XFA detection, packet extraction, field parsing,
classification. No new deps (pypdf + stdlib ElementTree). Lifted from
a working prototype with attribution preserved; parameterized for
producer profiles.
- is_xfa_pdf — MCP tool to detect XFA presence + classify dynamic vs
static. Use for branching BEFORE extract_form_data or convert_to_images.
- extract_xfa_fields — MCP tool that parses the XFA template for field
names, captions, UI types. Splits fields into shared (cross-form
canonical Global_Info-* vocabulary), positional (opaque codes like
p01tf022), and plumbing (producer internals, dropped). Defaults to
the zipForm producer profile; pass profile="generic" + custom regex
patterns for other producers. canonical_separator selects _ / . / -.
UX fixes for existing tools (no more cryptic failures on dynamic XFA):
- extract_form_data — diagnoses dynamic XFA and returns
{error, hint: "extract_xfa_fields"} instead of "document closed"
- convert_to_images — still produces the rendered image (caller may
want the placeholder), but now warns that it's not the real form
- analyze_pdf_health — surfaces is_xfa + xfa_type in document_stats,
adds a warning for dynamic XFA
Cross-tool alignment:
- extract_form_data field-type strings aligned to the same six-term
vocabulary as XFA (text/checkbox/radio/dropdown/date/signature +
button/unknown edge categories). listbox + combobox both collapse
to "dropdown" — the widget-hover distinction wasn't semantic.
Tests: 31/31 passing against the synthetic XFA fixture
(tests/fixtures/xfa/synthetic_dynamic_xfa.pdf). The fixture is
hand-built, license-clean, ~2 KB, and exercises all three classification
categories including the "denylist beats shared-prefix" invariant
(Global_Info-Invisibind-Test drops despite the shared prefix).
Build hygiene:
- .gitignore exception !tests/fixtures/**/*.pdf so fixtures survive
the global *.pdf rule
- pyproject.toml force-include for the fixture (uses hatchling's
force-include not include — the latter is restrictive, not additive)
Coordinated via the agent-thread protocol; full design history is
in docs/agent-threads/xfa-form-support/ (excluded from the sdist).
96 lines
980 B
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96 lines
980 B
Plaintext
# Byte-compiled / optimized / DLL files
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__pycache__/
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*.py[cod]
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*$py.class
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# C extensions
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*.so
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# Distribution / packaging
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.Python
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build/
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develop-eggs/
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dist/
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downloads/
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eggs/
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.eggs/
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lib/
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lib64/
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parts/
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sdist/
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var/
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wheels/
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pip-wheel-metadata/
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share/python-wheels/
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*.egg-info/
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.installed.cfg
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*.egg
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MANIFEST
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# PyInstaller
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*.manifest
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*.spec
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# Installer logs
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pip-log.txt
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pip-delete-this-directory.txt
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# Unit test / coverage reports
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htmlcov/
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.tox/
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.nox/
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.coverage
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.coverage.*
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.cache
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nosetests.xml
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coverage.xml
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*.cover
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*.py,cover
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.hypothesis/
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.pytest_cache/
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# Environments
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.env
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.venv
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env/
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venv/
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ENV/
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env.bak/
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venv.bak/
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# IDEs
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.idea/
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.vscode/
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*.swp
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*.swo
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*~
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.DS_Store
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# mypy
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.mypy_cache/
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.dmypy.json
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dmypy.json
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# Pyre type checker
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.pyre/
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# PDF test files
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*.pdf
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# Exception: test fixtures are deliberate, small, license-clean.
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!tests/fixtures/**/*.pdf
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test_pdfs/
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sample_pdfs/
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# Temporary files
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tmp/
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temp/
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*.tmp
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# OCR output
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tesseract_output/
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ocr_results/
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# Log files
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*.log
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logs/
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