The Shaper 
tool helps you create complex and beautiful designs by drawing, stacking, and placing shapes together, and then simply combining, merging, deleting, or moving them. Use simple, visually-intuitive gestures to perform operations that previously may have taken multiple actions to achieve.
Use the Shaper tool to turn natural gestures into vector shapes. Use a mouse or the ease of a touch device to create polygons, rectangles, or circles. The shapes drawn are live shapes. This feature is enabled in the traditional workspaces, the specialized Touch workspace, and on your mobile with Illustrator Draw.
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Using your mouse (on a non-touch device) or your finger scribble on an area that you would either like to merge, delete, or punch out.
The following rules determine how portions of the shapes are punched out or merged, and what the color of a merged shape is:
- If the scribble is within one shape, the area is punched out.
- If the scribble is across intersecting areas of two or more shapes, the intersecting areas are punched out
- If scribble originates from the shape in the front:
- From a non-overlapping area to an overlapping area, the shape in the front is punched out
- From an overlapping area to a non-overlapping area, the shapes are merged, with the color of the merged area being that of the scribble origin point.
- If the scribble originates from the shape in the back:
- From a non-overlapping area to an overlapping area, the shapes are merged, with the color of the merged area being that of the scribble origin point.
- From a non-overlapping area to an overlapping area, the shapes are merged, with the color of the merged area being that of the scribble origin point.
(Left) Scribble action, and (Right) Resulting Shaper Groups
All shapes in a Shaper Group stay editable, even after portions of shapes may have been punched out or merged. The following actions allow you to select individual shapes or the group:
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- Perform the steps required to get into Construction mode.
- Drag and drop a shape out of the bounding box.
The Shape Builder tool 
is an
interactive tool for creating complex shapes by merging and erasing
simpler shapes. It works on simple and compound paths.
It intuitively highlights edges and regions of the selected art, which can be merged to form new shapes. An edge is defined as the section of a path, which does not intersect any other path of the selected objects. A region is a closed area bounded by edges.
By default, the tool is in merge mode where it allows you to combine paths or regions. You can also switch to the erase mode to delete any unwanted edges or regions by pressing Alt (Windows) or Option (Mac).
For a video on creating new shapes using the Shape Builder tool, see www.adobe.com/go/lrvid5203_ai_en.
You can set up and customize various options such as gap detection, coloring source, and highlighting to get the required merging capability and better visual feedback.
Double-click the Shape Builder Tool icon in the Tools panel to set these options in the Shape Builder Tool Options dialog box.
Gap Detection
Set the gap length using the Gap Length drop-down list. The values available are Small (3 points), Medium (6 points), and Large (12 points).
Select the Custom check box if you want to provide an exact gap length.
When you select the gap length, Illustrator finds the gaps only close to the specified gap length value. Make sure that the gap length value is close (approximately) to the actual gap length of the art. You can check if the gaps are being detected by providing different gap length values until the gaps in the art are detected.
For example, if you set the gap length to 12 points, whereas the shape that you need to merge contains gaps at 3 points, Illustrator may not detect the gaps.
Consider Open Filled Paths as Closed
If this option is selected, an invisible edge is created for an open path to make a region. When you click inside the region, a shape is created.
In Merge Mode, Clicking the Stroke Splits the Path
Select the check box, In Merge Mode, Clicking Stroke Splits
the Path. This option allows you to split the parent path into two.
The first path is created from the edge on which you click and second
path is the remaining portion of the parent path excluding the first path.
If this option is selected, the pointer changes to 
, while
splitting the path.
Pick Color From
You can choose to color objects using the color swatches or the colors used in existing artwork. Use the Pick Color From drop-down list to select the Color Swatches or Artwork option.
If you select the Color Swatches option, you get the Cursor Swatch Preview option. You can select the Cursor Swatch Preview check box to preview and select colors. A Live Paint style cursor swatch is provided when you select this option. It allows iteration (using the arrow keys) and selecting colors from the swatches panel.
note: You can iterate using the arrow keys even if the Cursor Swatch Preview is disabled.
To change the color of the stroke, move the pointer over object edges to highlight and change the color of the stroke. This option works only if the option, In Merge Mode, Clicking Stroke Splits the Path is selected.
You can select the fill color of a region by pointing anywhere on the document.
note: The Cursor Swatch Preview is not displayed while merging, to ensure that the shapes are clearly visible.
If you select the Artwork option, Illustrator uses the same rules that are used for other art styles on merged objects. For more information, see step 6 in Creating shapes using Shape Builder Tool.
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