Use Eraser tool to remove what you don't need from the scene. Works on Images, Text, Brush, and Shape.
Select the Eraser from the tools menu.
Select the layer you want to erase by using the Select tool or from the left layer panel.
Click and drag over the selected layer to erase any part of it.
Click on the eraser icon to open the stroke panel.
Drag the slider or edit the numerical value to adjust the eraser size.
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