You can remove pixels entirely using the Eraser Tool.
To Remove Pixels from a Photo:


Eraser Tool Options
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Brush options drop-down menu |
Select Brush Options:
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Brush Size |
Click the drop-down arrow beside the Brush Size box and drag the slider to the left or right until the brush or nib is the desired size. |
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Spacing |
Click the drop-down arrow beside the Spacing box and drag the slider to the left to create a smooth, continuous stroke and to the right to create a dotted stroke. |
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Opacity |
Click the drop-down arrow beside the Opacity box and drag the slider to the left to reduce opacity and to the right to increase opacity. |
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Fade drop-down menu |
From the Fade drop-down, select fade options:
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Within |
Specifies the percentage of how fast the brush will fade. |