Sometimes when I upload a PDF, it turns blue when i try to create a measurement, and will not allow me to get and quantities. What is causing this
You cannot make this change to a file within a Studio Session. But before a file is uploaded, look in the Measurements tab and see what scales and viewports exist. If there are any untitled viewports, be sure to delete them. Any named viewports with a scale, verify they are correct for the given area
The PDF almost certainly has "Viewports." Put simply, these are scales added to an area or areas of a PDF. The blue highlights you see are the areas managed by the viewports. I personally remove all viewports before working with any PDF's, however, if you're working in tandem with someone else I would check with them first. See this help file from Bluebeam: https://support.bluebeam.com/revu/how-to/use-viewports.html
Yes, I believe that is the problem. How do I turn those Viewports off, or remove protected scales?
Great information, Thankyou!
Chances are you have a viewport that you did not create. Clear all viewports and set your own scales.
Failing that, the document is locked.
