If you need to copy a small, specific area, try a small, hard-edged brush. If you need to copy a larger area, or one without clear edges, try a larger, softer brush.

From the Options bar, specify the following:

• Select the blending mode to specify how the new pixels you apply should interact with those already existing in the image.

• Specify the opacity of your brush strokes to define how much of the image below shows through the pasted area.

• Define the flow rate to identify how much "paint" is applied at once, and click the airbrush button to "spray" the effect rather than "brush" it.

• Choose Aligned to cause Photoshop to keep track of your brush strokes so each new stroke picks up where the previous one left off performing the copy and paste. Leaving the Aligned option unchecked causes Photoshop to start from the beginning each time you click the image to paint.

• Choose Use All Layers to copy from a layer other than the active one. If this option is left unchecked, you can only copy and paste within the currently active layer.

To specify from which part of the image you'd like to copy, ALT-click (Windows) or OPTION-click (Mac). Then, move to the location in which you want to paste it, and begin dragging in the window with the Clone tool.

For example, when I wanted to add more blocks to the image shown in Figure 8-22, I first OPTION-clicked (on my Mac) in the center of the Y block on the right to copy it. Then, I moved to the left a little bit and began dragging (painting) to paste the block in that location. I prefer to work on a new layer when pasting, so I have the option of removing the pasted element or editing it as needed.

Then I began dragging here to paste the copied image

First I clicked here to "sample" the spot I wanted to copy

555 pixels x 366 pixels

Figure 8-22 I used the Clone tool to duplicate a block in this image.

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