Measure Architectural Blueprints in PDF

A quick, browser-based tool to check dimensions on floor plans, elevations, and site plans.

Why Use an Online Blueprint Ruler?

Architects, contractors, and home renovators often receive plans as PDF files. Measuring a specific wall or room usually means printing it out to scale or opening it in specialized software like AutoCAD or Bluebeam.

PDF Ruler simplifies this workflow:

No Install: Just drag and drop your PDF plan.
Privacy: We don't upload your sensitive project files to any server.
Quick Check: Verify if a dimension string matches visual scale instantly.

Calibration Note

Important: Our tool currently auto-calibrates based on the assumption that the PDF page size is standard A4 (210mm x 297mm).
For large format drawings (A1, A0, Arch D), the measurements will be relative. You can use a known dimension to calculate the scale factor.

Frequently Asked Questions

Does it support 1:100 or 1:50 scales?

Not automatically yet. We calculate the raw distance on the page. We are working on scale presets for a future update.

Is my client's data safe?

Absolutely. No file uploading happens. Everything stays in your browser's memory.