How to Set Multiple Scales on the Same PDF Drawing (2018)


Best practices for setting up multiple scales (calibrations) on a single page of a PDF drawing.

Relevant Products

Bluebeam® Revu® 2018

The Viewports section of the Measurement tab allows you to create viewports with various scalar calibrations. This allows you to define different areas (via the viewports) which each have different effective scales, and all measurement markups drawn within these viewports will adhere to that viewport’s specific scaling.

  1. In the Window menu, hover over Panels, then click Measurements (Alt+M).
  2. In the Viewports section of the Measurement panel, click the Add button to define a viewport.
  3. Click OK on the pop-up window, and click and drag to draw out a rectangle on the PDF to define the area for the new viewport.
  4. Type a name for the viewport, then click OK.
  5. Click the Calibrate button in the Viewports section of the Measurement panel to calibrate a new scale for the viewport, or manually type the new scale values directly into the Viewports panel.
  6. Select a viewport in the list and then click the  button to delete it. Click the Clear All button to delete all of the existing viewports.

The existence of extra viewports may adversely affect measurement markups. For example, if you’re drawing a Length measurement using feet and inches, but the annotation appears in decimal format, then it’s possible there are existing viewports on the PDF which are affecting the measurement.

These viewports can be deleted from the PDF via the Measurements tab as well.

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