In Locked pdf when i attempt to create a measurement the screen turns blue

Ron Nault

Luke Shiras

Are you able to make any markups? Can you use the "Length" or "Dimension" tools?

Ken Phelps

Think this thread was already flagged as answered. What you're seeing is a Viewport. Go to your measurements panel and towards the bottom is a viewports section. Remove any flagged as unnamed or untitled.

If you open a PDF and are prompted with something along the lines of "there are multiple untitled viewports" and then prompted to delete them, the answer should typically be YES. Just keep in mind that if you have a large pdf with many many sheets in it, this viewport removal step could take some time to complete. They can be removed individually, by page or by the entire document later if you want.

Marco M

All comments/replies within a Question are considered Answers. However, only the original poster can select accepted solutions as "Best Answers." Those get thrown to the top.

Ron Nault

Thanks everyone