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Adding and deleting anchor points
Adding
anchor points can give you more control over a path, or it can extend
an open path. However, it’s a good idea not to add more points than
necessary. A path with fewer points is easier to edit, display,
and print. You can reduce the complexity of a path by deleting unnecessary
points. Adding and deleting anchor points works similarly in Adobe
applications.
The
Tools panel contains three tools for adding or deleting points:
the Pen tool , the
Add Anchor Point tool , and
the Delete Anchor Point tool . In
addition, the Control panel has a Remove Selected Anchor Points
button 
By default, the Pen tool
changes to the Add Anchor Point tool as you position it over a selected
path, or to the Delete Anchor Point tool as you position it over
an anchor point.
Note: Don’t
use the Delete, Backspace, and Clear keys or the Edit >
Cut and Edit > Clear commands to delete anchor points:
these keys and commands delete the point and the line segments that
connect to that point.
Add or delete anchor points- Select
the path you want to modify.
- To
add an anchor point, select the Pen tool or the Add Anchor Point
tool, position the pointer over the path segment, and click.
- To
delete an anchor point, do either of the following:
Select
the point with the Direct Selection tool and click Remove Selected Anchor
Points in
the Control panel.
Select
the Pen tool or the Delete Anchor Point tool, position the pointer
over the anchor point, and click.
Find and delete stray anchor pointsStray
anchor points are individual points that are not connected to other
anchor points. It is a good practice to find and delete stray anchor
points.
- Deselect all objects.
- Choose
Select > Object > Stray Points.
- Choose
Edit > Cut or Edit > Clear commands, or
press Delete or Backspace on the keyboard.
Disable or temporarily override automatic Pen tool switchingYou can temporarily
override or disable automatic switching to the Add Anchor Point
tool or Delete Anchor Point tool.
- To
temporarily override switching, hold down Shift as you position
the Pen tool over the selected path or an anchor point. This is
useful when you want to start a new path on top of an existing path.
To prevent Shift from constraining the Pen tool, release Shift before
you release the mouse button.
- To
disable switching, choose Edit > Preferences >
General (Windows) or Illustrator > Preferences >
General (Mac OS), and select Disable Auto Add/Delete.
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