The Line tool draws a straight line segment. Segments can be at any angle and easily forced to be horizontal, vertical, or at a 45° angle on the page.
- Select the Line tool using one of the following methods:
- Go to Tools > Markup > Line.
- Click on the
- Press L on the keyboard.
- Click and drag to place a line segment on the PDF.
- Hold down SHIFT to draw lines that are at horizontal, vertical, or 45° angles.
You can attach a note to nearly any markup that does not have a text box of its own. Simply double-click the markup to open the Note pop-up window. Notes attached to markups are functionally similar to the Note Tool.
Select a markup to reveal its control handles. Each handle controls a different aspect of the markup's size and orientation.
To resize the markup or change its angle, click and drag the appropriate yellow handle. Hold down SHIFT while dragging to force the markup to a horizontal, vertical, or 45° angle.
See Editing Markups for more information.
The appearance of the Line markup is configurable, including its color, thickness, pattern, ends, and opacity.
To change the appearance of a Line markup, select it and click the Properties panel. Several properties will also be available on the Properties toolbar when the markup is selected.
Color: Sets the line color.
Fill Color: Controls the fill color of the endpoints.
Highlight: Makes the fill color and line transparent so underlying content shows through.
Opacity: Sets opacity level of the line and endpoints, from 0 (invisible) to 100 (opaque).
Line Width: Sets the line thickness in points. A setting of 0 effectively renders the line invisible.
Style: Determines the pattern of the line segment.
Each endpoint has an associated Scale that determines the size of the endpoint in relation to the Line Width. By default, it is set to Auto and will automatically adjust as the Line Width is changed.