Arc Tool

1. Select the Arc tool using one of the following methods:
   • Go to Tools > Markup > Arc.
   • Click   on the Markups toolbar.
   • Press SHIFT+C on the keyboard.
2. To create an elliptical arc:
   1. Click on the document to place the first point of the arc.
   2. Click again to place the end point.
3. To create a circular arc:
   1. Hold down the SHIFT key.
   2. Click both points of the arc.

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 rotate the markup, click and drag the orange handle outside the markup (when the markup is first placed, it will be at the top). By default, the markup is rotated in increments of 15°; to rotate in increments of 1°, hold down SHIFT while dragging.

The rotation can also be entered in the Rotation field found in the Layout section of the Properties panel.

To resize the markup, click and drag the appropriate yellow handle. When dragging the control handles at the endpoints of the line, the arc will automatically continue on its original ellipse. To automatically lengthen or shorten the arc in 15° increments, hold down SHIFT while dragging.

See Editing Markups for more information.

Note: An Arc is an open line. While their endpoints can nearly touch, arcs cannot be closed into a ellipses. Use the Ellipse Tool to create an ellipse, if desired.

The appearance of the Arc markup is configurable, including its line and fill color, hatch pattern, line width and style, and opacity. Selecting a Fill Color or Hatch pattern will automatically turn the arc into a pie shape.

To change the appearance of an Arc markup, select it and click the Properties panel. Several properties will also be available on the Properties toolbar when the markup is selected.

Appearance Properties

Color: Sets the line color.

Fill Color: Sets a fill color.

Highlight: Makes the fill color and/or hatch pattern transparent so underlying content shows through.

Opacity: Sets opacity level of the line and endpoints, from 0 (invisible) to 100 (opaque).

Fill Opacity: Sets the fill opacity, 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 line pattern.