You can copy any layer, including the Background layer, from one image to another. Keep in mind that the resolution of the destination image determines how large the printed copy of the layer can be. Also, if the pixel dimensions of the two images are not the same, the copied layer may appear smaller or larger than you’d expect.
Choose Select > All to select all of the pixels in the layer, and choose Edit > Copy. Then make the destination image active, and choose Edit > Paste.
Drag the layer’s name from the Layers palette of the source image into the destination image.
Use the Move tool
to
drag the layer from the source image to the destination image.
The copied layer appears in the destination image, above the active layer in the Layers palette. If the layer you’re dragging is larger than the destination image, only part of the layer is visible. You can use the Move tool to drag other sections of the layer into view.
Hold down Shift as you drag a layer to copy it
to the same position it occupied in the source image (if the source
and destination images have the same pixel dimensions) or to the
center of the destination image (if the source and destination images have
different pixel dimensions).
