11.2.1 for Windows

Foxit PDF Editor
Chapter 7: Comment User Manual
234
line segments that you draw. Click the first point to start, and then click each
point you want to measure. After you have clicked at least two points, click
the first point or double-click the last point to complete the area
measurement.
Notes:
1. When measuring, you can hold down SHIFT to snap the two points horizontally,
vertically, or diagonally (in 45 degrees).
2. You can also choose to complete or cancel measurement by right-clicking the
measurement and choosing options from the context menu.
After you select the measuring tool, the Format tab appears in the right panel, which
allows you to calibrate the scale ratio, snap measurement, export measurement
markup, etc.
 If your PDF file includes embedded scale ratio, you can measure
distance/perimeter/area using the embedded scale ratio. Before that, you need
to select the Use Scale and Units From Document (When present) option in
File > Preferences > Measuring. Then all the following measuring will use the
embedded scale ratio. To calibrate the scale ratio for your document for an
accurate result, choose either method of the following:
➢ With the Use Scale and Units From Document (When present) option
selected:
1) Choose Calibrate from the Format tab and then click the two
points of the line whose actual length has already been known. (Tips:
When drawing, you can hold down SHIFT to snap the two points horizontally,
vertically, or diagonally. You can also click Snap to Paths in the
Format tab to capture the path in the page.)
2) When the second point is selected, the Calibration dialog box pops up.
3) Type the actual length that the line represents and choose the
appropriate unit, which will set a new scale ratio.
4) (Optional) If you already have the correct scale ratio, directly define the
measurement value and choose the appropriate unit in the Format tab.
5) Then in the pop-up Calibration dialog box, click Store Scale in Page to
apply the new scale ratio to the current page, or click Apply to All Pages
to apply it to all pages (Or click the / icon in the Format tab to
apply the new scale ratio to the current page or all pages). The new scale
ratio will be embedded into the page or all pages respectively, replacing