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Measure Toolbar

Calibrate drawing scale and run linear, area, radius, diameter, angle, polylength, and count measurements on PDFs.

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Measure Toolbar

Measurement tools for quantifying distances, areas, and counts on scaled drawings. Enable via View → Toolbars → Measure.

Calibrate

Before measuring, calibrate the drawing scale:

  1. Click Calibrate.
  2. Drag a line over a known dimension on the drawing (e.g., a wall labelled "10 m").
  3. A dialog asks for the real-world length and unit (m, ft, mm, etc.).
  4. The px-per-unit ratio is stored and used by all measurement tools.
Tip: Calibrate separately for each PDF if drawings use different scales.

Linear Measure

Drag between two points. A line with a distance label appears. If calibrated, shows the real-world measurement (e.g., "4.75 m").

Area Measure

Click to add polygon vertices; double-click or press Enter to close. The area is calculated and displayed in m² or ft².

Count

Each click places a numbered circle marker. All markers are auto-numbered sequentially. The total count is shown in the toolbar.

Radius

Click center point, then click edge point of a circle. Displays the radius measurement with an R prefix.

Diameter

Click two opposite points on a circle. Displays the diameter with a Ø prefix.

Angle

Click vertex point, then first arm, then second arm. Displays the interior angle in degrees.

Polylength

Click to add multiple vertices; double-click or press Enter to finish. Calculates the total length of all segments. Ideal for measuring piping, cable trays, or duct runs.

Related topics
  • Markup ToolsRectangle, ellipse, cloud, text, freehand, highlight, and cutout tools for marking up PDF construction drawings.
  • Cost ImpactLive cost estimates as you mark up PDFs and 3D issues. Calibrate scale, link IFC element types, map Revit categories, toggle imperial/metric, roll up per project.
  • Compare DrawingsOverlay two PDF revisions and highlight every visible change so revision reviews don't miss anything.