P&ID
Tag Counter
Count instrument tags on your P&IDs instantly. Upload a drawing and see tag counts by type, instruments, valves, equipment, and line numbers.
In short
The Pathnovo P&ID tag counter identifies and counts every tag on a P&ID drawing by type: instrument tags, control valves, safety valves (PSVs), equipment tags, line numbers, and actuators. Accepts PDF, TIFF, PNG, and JPEG files at 300 DPI or higher. Powered by the same AI as our full P&ID extraction service at 99.5 percent accuracy on well-scanned drawings. Use it for early-stage scope sizing, procurement-package estimation, and vendor-quote sanity checks before commissioning full tag extraction. For production-scale extraction across hundreds of P&IDs, see the [P&ID extraction workflow](/solutions/pid-extraction).
How It Works
Step 1
Upload P&ID
Upload your P&ID drawing in PDF, TIFF, or image format.
Step 2
AI Counts Tags
Our AI engine identifies and counts every tag on your drawing.
Step 3
Get Tag Summary
Receive a structured summary of tag counts by type.
What Gets Counted
Instrument tags
Control valves
Safety valves (PSVs)
Equipment tags
Line numbers
Actuators
Frequently Asked Questions
What file formats does the P&ID tag counter accept?
The tag counter accepts PDF, TIFF, PNG, and JPEG files. For best results, upload high-resolution scans (300 DPI or higher) of your P&ID drawings.
How accurate is the tag counting?
Pathnovo's AI engine achieves 99.5% accuracy on well-scanned P&IDs. The tool identifies instrument tags, control valves, safety valves, equipment, line numbers, and actuators using the same AI that powers our full extraction service.
How do I try the full tag counting capability?
The tag counter landing page provides information about the tool. To see the full capability on your own drawings, book a demo and we will walk you through a sample extraction on a scoped paid pilot on the Starter tier.
See what your documents actually contain.
Send us 10 documents from your current project. We extract, reconcile, and show you exactly what we find in 48 hours, before any contract.
If the accuracy isn't what we promised, you owe us nothing.