Merging layers

Merging layers combines several layers into one and keeps file size manageable. When you've finalized the characteristics and positioning of a layer's contents, you can merge the layer with one or more layers to create partial versions of your composite image. The intersection of all transparent areas in the merged layers remains transparent. You can also merge the layers in a linked group or grouped layer. (See Creating grouped layers.)

For information on merging adjustment layers, see Merging adjustment layers or fill layers.

Note: Merging any layer with the background creates a background layer.

To merge a layer with the layer below it:

1 Make sure that the two layers you want to merge are visible. Select the top layer of the pair in the Layers palette.

2 Choose Layer > Merge Down, or choose Merge Down from the Layers palette menu.

To merge all visible linked layers:

1 Make visible all layers you want to merge, and link them together.

2 Choose Layer > Merge Linked, or choose Merge Linked from the Layers palette menu.

To merge all the visible layers in an image:

1 Hide any layers you do not want to merge. Make sure that no hidden layers are linked to the visible layers.

2 Choose Layer > Merge Visible, or choose Merge Visible from the Layers palette menu.

To create a new, merged layer from all visible layers, while keeping the original layers intact:

1 Hide any layers you do not want to merge. Make sure that no hidden layers are linked to the visible layers.

2 Hold down Alt (Windows) or Option (Mac OS), and choose Layer > Merge Visible.

Using Layers > Managing layered images > Merging layers