Things You'll Need:
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Step 1
Open an image to use for practice using the eraser tool. Select the eraser tool from the Photoshop toolbar. This is the picture of the school eraser.
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Step 2
Change the brush size on the eraser options bar underneath the menus. The larger the number of brush size, the bigger your brush will be.
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Step 3
Choose a "Mode" of either "Brush," "Pencil" or "Block." The shape you select will be the shape that your eraser will use when erasing parts of your image.
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Step 4
Make any changes to the opacity or flow of the eraser tool. Decreasing the opacity of your brush will make your brush more transparent while increasing the opacity will make it less transparent. The higher the flow, the more paint that will be released. The lower the flow, the less paint that will be released when you click your mouse.
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Step 5
Select the "Erase to History" checkbox to store a history of the erasing that you make to your image.
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Step 6
Click or click and drag with your mouse to erase a pixel or section of your image.








