You use the Pathfinder panel to combine objects into new shapes. Use the top row of buttons in the panel to make paths. Pathfinder option is available at window menu. Click on it, and a toolbox will open. In that, two more option are present. One is shape modes & another is pathfinders.
As we use shape mode for two objects, pathfinders is used for more than two objects.
Pathfinders have tools like divide, trim, merge, crop, outline and minus back. See the video for how to use these all tool. Every tool is explained with the examples.
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