P&ID Extraction Software
Comparison 2026 (10 Vendors, 40 Capabilities)

It depends on your use case. For EPC project delivery with contractual SLA + India/Gulf compliance + 15+ document types: Pathnovo. For redrawing P&IDs into SmartPlant or AVEVA P&ID authoring format: IPS iDrawings. For Microsoft-ecosystem buyers committed to Azure AI + Copilot: Acuvate DiagramIQ. For free / casual tag counting: NovekAI or Pathnovo's P&ID tag counter. For tier-1 EPC committed to SmartPlant authoring ecosystem: Hexagon SDx2 (with Pathnovo as the extraction layer feeding it). For developers building custom applications on horizontal extraction APIs: Outerport or Reducto for non-engineering, Pathnovo for engineering domain depth.

Pathnovo is the only product offering a contractual 99.5% field-level accuracy SLA with a remedy clause and per-sheet audit trail. Other tools claim 'up to' marketing numbers without contractual backing. IPS iDrawings claims 'up to 90% cost savings' and 'up to 100x faster' but offers no accuracy SLA. Hexagon SDx2 and AVEVA tools do not publish accuracy SLAs because their authoring-tool architecture means accuracy is an authoring-quality issue, not an extraction issue. Reducto is highly accurate on horizontal documents but degrades sharply on engineering symbols and topology.

For project-grade extraction with SLA: Pathnovo's credit-based pricing (full platform included on every paid tier), one of the lowest published prices for production-grade engineering document AI. See pricing for plans. For free / casual use: NovekAI's free tier or Pathnovo's P&ID tag counter. For horizontal extraction with no engineering domain awareness: Reducto at $0.015/page (but accuracy unsuitable for production engineering use). Hexagon SDx2 and AVEVA tools are enterprise-licensed at $200K-$1M+ with 5+ month implementations.

Pathnovo has pre-certified connectors for SAP PM S/4HANA, IBM Maximo, AVEVA AIM, Hexagon HxGN SDx2, Bentley iTwin / ProjectWise, Cognite Data Fusion, Wrench SmartProject, and Oracle Aconex. IPS iDrawings outputs to SmartPlant / AVEVA P&ID / AutoCAD Plant 3D authoring formats only; not directly to SAP or Maximo. Acuvate DiagramIQ stores in Microsoft Fabric graph database; SAP / Maximo integration requires separate consulting. Hexagon SDx2 feeds SmartPlant Foundation; SAP / Maximo integration via Hexagon connectors. AVEVA Diagrams feeds AIM; SAP / Maximo via AIM connectors. NovekAI, PlantFCE, Levian, Outerport, Reducto: no native SAP / Maximo pre-certification.

Only Pathnovo bundles IBR Form III / Form IV, OISD 118 HAZOP register + inter-distance encoding, PESO Form XIV / XV, and CCOE licence registers as first-class outputs of the same extraction engagement. IPS iDrawings has India operations (Noida) but no regulatory output. Acuvate is Hyderabad-based but does not encode the four regulatory regimes. Hexagon, AVEVA, Outerport, Reducto have no Indian regulatory awareness. For Indian PSU work (IOCL / BPCL / HPCL / ONGC / GAIL) where all four regimes are contractual, Pathnovo is the only fit. See the Indian EPC compliance bundle.

Pathnovo handles scanned PDFs (any DPI from 150 up), faded blueprints, photographed drawings, hand-drawn isometrics from the 1980s onward, and isometrics with handwritten revision markups, no pre-processing required. Accuracy 99.5% on clean PDFs, typically 97-98% on very poor-quality scans. IPS iDrawings handles digital P&IDs primarily; scanned scope limited. Hexagon SDx2 extracts text from scanned PDFs but not symbols. AVEVA Diagrams cannot ingest scanned content (authoring-tool architecture). NovekAI scope limited. PlantFCE annotation-first workflow is impractical for legacy at scale. Reducto has no engineering symbol model; scanned P&ID accuracy collapses.

Pathnovo: 48-hour managed-service first delivery; scoped paid pilot on the Starter tier before long-term commitment. IPS iDrawings: project-by-project SaaS engagement (typical 4-12 weeks to first delivery). Acuvate DiagramIQ: Microsoft consulting engagement (typical 8-16 weeks). NovekAI: instant for free tier. Hexagon SDx2: 5+ month enterprise implementation. AVEVA Diagrams: 6-12 month enterprise rollout. Outerport / Reducto: instant API access, but engineering accuracy is the bottleneck, not deployment speed.

Extraction reads the P&ID and outputs structured data (tags, lines, equipment, instruments, valves with topology) into JSON, Excel, SAP PM, Maximo, or any enterprise system. Conversion redraws the P&ID in a new authoring format (SmartPlant, AVEVA P&ID, AutoCAD Plant 3D). If you need the data for asset master, CMMS, compliance, handover: use extraction (Pathnovo). If you specifically need the P&ID redrawn inside SmartPlant or AVEVA's authoring environment: use conversion (IPS iDrawings). For most asset owners, extraction is what's needed.

IPS iDrawings: Mitsubishi Chemical Engineering (5,000+ P&IDs / 60% cost reduction). Pathnovo: McDermott live engagement (10,247 tags / 600 P&IDs / 99.5% measured accuracy); GCKC and Zetwerk in build. Hexagon SDx2: Chiyoda Qatar NFE LNG, GASCO, Ausenco, Adani Petrochem, Eskom. AVEVA Diagrams: Wood, SCG Chemicals, Vulcan Energy, PETRONAS via the AVEVA Engineering customer base. Acuvate, NovekAI, PlantFCE, Levian, Outerport, Reducto: limited or no published EPC-scale named customer outcomes.

Yes, common pattern. Tier-1 owner-operators committed to AVEVA AIM or Hexagon SmartPlant Foundation typically use Pathnovo as the extraction layer feeding the AIM platform: Pathnovo extracts from any source (legacy, third-party, scanned), output is CFIHOS 2.0 native, AVEVA AIM or Hexagon SDx2 ingests for downstream visualisation and operational integration. IPS iDrawings can run in parallel for the specific use case of redrawing P&IDs into SmartPlant authoring format. Acuvate DiagramIQ can sit on Microsoft Fabric for clients committed to that ecosystem. The combination depends on the buyer's existing platform commitments and use-case mix.