Community recipe · Tool workflows

Convert engineering PDFs into a reviewable CAD package

Source-backed example. Practical decision guidance is proposed and untested; this is not a full implementation guide.

The problem

Engineering drawings supplied as PDFs need editable geometry and clear uncertainty flags before anyone can consider using them for technical work.

Agent job

Extract PDF geometry and text with flagged OCR fallback, interpret quality findings and package CAD outputs with previews and a report.

Expected output

DXF, optional DWG, previews and a quality report requiring engineering review.

Where this framing comes from

Core problem: Editorial purpose framing
Agent job: Editorial purpose framing
Expected output: Editorial purpose framing
Relevant job roles: Editorial purpose framing
Benefit type: Editorial purpose framing

Editorial framing and outcome limits

Describes the task’s purpose and intended output; measured benefit, safe unsupervised operation and successful delivery are not established by this framing.

Editorial synthesis based on the linked source. This framing does not add evidence of successful delivery or results.

Case-specific decision guidance · untested

Case-specific decision guidance and first checks are original proposals. The linked source supports the attributed task; this added guidance has not been executed.

Read the attributed source evidence and original caveats below ↓

Why use this

An engineer receiving a PDF drawing may need editable geometry but cannot assume every line, dimension and label will survive extraction correctly. A clean CAD preview can conceal scale errors or uncertain OCR text.
This job could prepare a conversion-review package that keeps geometry provenance and unresolved findings visible. The engineer can then decide which portions require manual reconstruction before considering any downstream technical use.

Why an agent / simpler alternative

Useful judgment: Classify drawing content, distinguish vector extraction from OCR inference and organize quality findings for engineering review.
Simpler alternative: Request the original CAD file when it is available and authoritative.
Unsuitable when: The converted output would drive manufacturing, quotations or production without qualified validation.

Proposed inputs

Name
Authorized drawing PDF
Owner
Engineering owner
Minimum scope
Complete revision with title block and known units
Quality check
Confirm file type, page scope and source authority
Name
Conversion requirements
Owner
Engineer
Minimum scope
Needed layers, geometry/text scope and output formats
Quality check
Identify required dimensions and review tolerances without inventing them

Access and setup — proposed or unknown

Proposed minimum: Inspect a fictional drawing manifest and quality-report plan; no converter execution, OCR, CAD generation or upload.
Compatibility unknowns: Current converter support, DWG dependencies, OCR behavior and runtime compatibility are unknown.
External actions requiring approval: Installing converters, uploading drawings, overwriting files or releasing technical outputs requires authorization and engineering review.

Expected deliverable and review checks

Proposed artifact: CAD-package specification with output manifest, preview requirements, uncertainty flags and manual-review questions.
Critical checks: Preserve original revision; trace units/scale; keep OCR-derived text marked; distinguish candidate geometry from verified dimensions.
Missing output evidence: This overlay adds no new output inspection, execution or validation; consult the referenced canonical source outcome limits.

Failure signals and proposed responses

Signal
A dimension label is read incorrectly
Why it matters
The drawing can look plausible but imply wrong geometry
Proposed response
Flag the source region for manual verification.
Signal
Different pages use different scales
Why it matters
One conversion setting distorts part of the package
Proposed response
Record scale per page and hold uncertain sections.

Effort and cost — unknown

Setup work: Define drawing scope and quality-review criteria.
Ongoing review: Engineers inspect dimensions, geometry and any intended downstream use.
Unknowns: Source quality, conversion fidelity, manual repair effort and tooling costs are unknown.

First check — proposed, unexecuted

Status: proposed_unexecuted
Synthetic fixture: Invent a two-page drawing manifest with inconsistent scales and one ambiguous OCR dimension; draft a quality report only.
Acceptance checks: Keep both issues needs-review; generate no CAD; claim no geometric or production validation.
Stop conditions: Stop if units, revision identity or required accuracy cannot be established.

Limits

A package plan or readable preview cannot establish dimensional accuracy, manufacturing suitability or reconstructed three-dimensional geometry.

Tasks: Design & prototypes Documents & files

Useful for: Engineer Designer

Editorial relevance from the title and source-supported actions; not evidence of the operator’s occupation.

OpenClawIndependent testing: No

Editorial candidate. This is source-backed reporting or a documented workflow. BotCurrent has not independently tested this task. A proposed Canadian adaptation is not evidence of a Canadian deployment or compliance certification.

Original source

https://github.com/CavanJB/openclaw-pdf-to-cad-agent-skill/blob/main/skills/openclaw-pdf-to-cad/SKILL.md ↗

Attributed to: CavanJB

Community recipe

Original action type: tool_action
What the source supports: Verify the drawing is a PDF; extract vector geometry and text with flagged OCR fallback; interpret quality findings and deliver DXF, optional DWG, previews and a quality report together.
Source outcome limits: Recipe only; mock demonstration is not a customer delivery. CAD output needs engineering review, especially OCR, dimensions and scale; no production accuracy or 3D reconstruction established.
Evidence attribution caveat: This community recipe describes a procedure; it does not prove successful execution or independently reproduced results.
Source approval description: Source requires manual engineering review for production, quotation or manufacturing use and preserves needs_review for uncertain geometry, dimensions, scale, text or OCR.
Named tools: OpenClaw/Jarvis; bundled PDF-to-CAD converter; DXF; optional DWG converter; OCR
Model or version: Unknown
Publication date: Unknown
Source last checked: 2026-10-14
Demonstrated in Canada: Unknown
Canadian availability: Unknown
Proposed Canadian adaptation: Proposed: support authorized Canadian engineering drawings and bilingual annotations, explicitly review mixed metric/imperial dimensions, and use Canadian engineering review appropriate to the intended work.
Recommended approval boundaries: Approve access to the supplied drawing and output location; require a qualified engineer to check dimensions, units, tolerances, geometry and annotations before manufacturing or quotation.