How to open PDF measure tool？

Use WPS Office to open the PDF, click Comment → Measure Tool.You can see a new column Measure Tool in the toolbar, and you can select any of them as needed.

Here take Distance as an examples.

1. Select Distance. Move the cursor to the starting point and click it.

2. Then move the cursor to the end point and at the same time, you can see a red line and the value of distance changing as your cursor moves.  Lastly, double click the end point.

3. The distance appears over the red line. You can also see more details in the box in the bottom right corner. When you have finished, click Exit.

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