How do I merge layers in Photoshop app?

Rename layers

As you add layers or layer groups to an image, it’s helpful to give them names that reflect their content. Descriptive names make layers easy to identify in the Layers panel.

  • Double-click the layer name or group name in the Layers panel and enter a new name. Press Enter (Windows) or Return (macOS).

  • Select the layer/group and then follow these steps:
    • Choose Layer > Rename Layer or Layer > Rename Group.
    • Enter a new name for the layer/group in the Layers panel.
    • Press Enter (Windows) or Return (macOS).

Delete layers

Deleting the layers you no longer need reduces the size of your image file. To quickly delete empty layers, choose File > Scripts > Delete All Empty Layers.

To delete layers or layer groups having edits, follow the steps below:

  1. Select one or more layers or groups from the Layers panel.

    • To delete with a confirmation message, click the Delete icon 
      How do I merge layers in Photoshop app?
      . Alternatively, choose Layers > Delete > Layer or Delete Layer or Delete Group from the Layers panel menu.

    • To delete the layer or group without confirmation, drag it to the Delete icon 
      How do I merge layers in Photoshop app?
      , Alt-click (Windows) or Option-click (macOS) the Delete icon, or press the Delete key.

    • To delete hidden layers, choose Layers > Delete > Hidden Layers.

    To delete linked layers, select a linked layer, choose Layer > Select Linked Layers, and then delete the layers.

Export layers

You can export all layers or visible layers to separate files.

Choose File > Scripts > Export Layers To Files.

Assign colors to layers

Color coding layers and groups helps you locate related layers in the Layers panel. Simply right-click the layer or group and select a color.

Rasterize layers

You cannot use the painting tools or filters on layers that contain vector data (such as type layers, shape layers, vector masks, or Smart Objects) and generated data (such as fill layers). However, you can rasterize these layers to convert their contents into a flat, raster image.

Once your layer is rasterized, you cannot edit them earlier because they are now converted to pixel-based layers. It's recommended to duplicate your layer and apply rasterization so that you can always go back to the original if necessary. To rasterize a vector layer or a Smart object, you can simply select a vector-based layer or a Smart Object and then choose Layer > Rasterize > Layer or Layer > Rasterize > All Layers to rasterize all layers in your document.

Select the layers you want to rasterize, choose Layer > Rasterize, and then choose an option from the submenu:

Type

Rasterizes the type on a type layer. It does not rasterize any other vector data on the layer.

Shape

Rasterizes a shape layer.

Fill Content

Rasterizes the fill of a shape layer, leaving the vector mask.

Vector Mask

Rasterizes the vector mask on a layer, turning it into a layer mask.

Smart Object

Converts a Smart Object into a raster layer.

Video

Rasterizes the current video frame to an image layer.

3D (Extended only)

Rasterizes the current view of 3D data into a flat raster layer.

Layer

Rasterizes all vector data on the selected layers.

All Layers

Rasterizes all layers that contain vector and generated data.

To rasterize linked layers, select a linked layer, choose Layer > Select Linked Layers, and then rasterize the selected layers.

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Learn how to manage layers, layer groups, and layer effects in a Photoshop document to keep your project organized.

Read the full article. Start with selecting any of these topics to learn more:

  Discontinuation of 3D features in Photoshop

Photoshop’s 3D features will be removed in future updates. Users working with 3D are encouraged to explore Adobe’s new Substance 3D collection, which represents the next generation of 3D tools from Adobe. Additional details on the discontinuation of Photoshop’s 3D features can be found here: Photoshop 3D | Common questions on discontinued 3D features.

Merge layers

When you have finalized the content of layers, you can merge them to reduce the size of your image files. When you merge layers, the data on the top layers replaces any data it overlaps on the lower layers. The intersection of all transparent areas in the merged layers remains transparent.

When you save a merged document, you cannot revert back to the unmerged state; the layers are permanently merged.

With Photoshop, you can apply any of the following merge operations on layers:

  • Merge down: To merge two adjacent visible layers where the bottom layer is a pixel layer, select the top layer in the Layers panel and then choose Layer > Merge Down, or choose Merge Down from the Layers panel’s menu, or press Cmd+E (macOS)/ Ctrl+E (Windows). Following this, Photoshop merges all top layers into the bottom pixel layer. You'll always need a pixel layer at the bottom of your layers to use the merge commands. 
  • Merge visible: To simply merge a selected few layers in your document, you can hide the layers you don’t want to combine and select a pixel layer as your base. Then, go to Layer > Merge Visible, or choose Merge Visible from the Layers panel’s menu, or press Shift+Cmd+E (macOS)/ Shift+Ctrl+E (Windows).
  • Merge active: Select all the layers you want to merge whether they are vector or pixel layers, and go to Layer > Merge Layers, or choose Merge Layers from the Layers panel’s menu, or press Cmd+E (macOS)/ Ctrl+E (Windows).
  • Merge linked: To merge linked layers together, select the linked layers by choosing Layer > Select Linked Layers, or choosing Select Linked Layers from the Layers panel’s menu, and then opting for the steps listed for merging active layers above.

You cannot use an adjustment or fill layer as the target layer for a merge.

Merge layers in a clipping mask

  1. Hide any layers that you do not want to merge.

  2. Select the base layer in the clipping mask. The base layer must be a raster layer.

  3. Choose Merge Clipping Mask from the Layers menu or the Layers panel menu.

For more information on clipping masks, see Mask layers with clipping masks.

Stamp multiple layers or linked layers

In addition to merging layers, you can also stamp them. Stamping allows you to merge the contents of more than one layer into a target layer while leaving the other layers intact. When you stamp multiple selected layers or linked layers, Photoshop creates a new layer containing the merged content.

You can prefer to use stamping when you want to edit multiple layers with the same tools but only one layer at a time. Stamping combines the selected layers into a new layer, leaving the original layers as is.

You can work with the following stamping options:

  • Stamp active layers: Select the layers that you want to stamp and then press Opt+Cmd+E (macOS)/ Alt+Ctrl+E (Windows).
  • Stamp visible: You can disable the layers that you do not wish to stamp by turning off their visibility in the Layers panel and then pressing Shift+Opt+Cmd+E (macOS)/ Shift+Alt+Ctrl+E (Windows). Also, you can hold Opt (macOS)/ Alt (Windows) as you select Merge Visible from the Layers panel’s menu to merge them into a new layer.

Flatten layers

Flattening reduces file size by merging all visible layers into the background and discarding hidden layers. Any transparent areas that remain are filled with white. When you save a flattened image, you cannot revert to the unflattened state as the layers get permanently merged.

You can work with any of the following flattening options:

  • Flatten Image: To flatten your entire Photoshop file, go to Layer > Flatten Image or select Flatten Image from the Layers panel’s menu.
  • Flatten All Layer Effects: To flatten only the layer styles instead of the entire image file, select File > Scripts > Flatten All Layer Effects. This makes the layer styles combine with the layer they are attached to. On applying any layer styles to vector layers like Type or Shape layers, the layer styles will get rasterized.
  • Flatten All Masks: To permanently apply masks to their associated layers, select File > Scripts > Flatten All Masks.

How do I merge layers in Photoshop app?

The image on the left shows the Layers panel (with three layers) and file size before flattening. The image on the right shows the Layers panel after flattening.

Converting an image between some color modes flattens the file. Save a copy of your file with all layers intact if you want to edit the original image after the conversion.

How do you merge layers in Photoshop IOS?

Apply a layer blend mode Tap the Layer Properties icon in the Task bar to open the Layer Properties panel with controls that affect the selected layer. In the Layer Properties panel, tap the Blend Mode menu and choose a blend mode to blend the active layer with the layers below.

Why can't I merge my layers in Photoshop?

You can merge any kind of layers, but you need to have a pixel-based layer underneath them in the Layers panel to use the merge commands, or else they're grayed out (just add a new Image layer if you need to). Photoshop then merges everything onto that pixel-based layer.