What is merge layers in Photoshop?

Answer 1

It is to make one composite layer from multiple layers. It is like having coffee, milk and sugar separate then you mix them (put them together in cup). Note that you don't have access to change amount of coffee or sugar separate as it is with merged layers.

Answer 2

In Photoshop, merging layers refers to combining multiple layers into a single layer. This can be useful for several reasons, such as simplifying your project, reducing file size, or preparing the image for export in a specific format.

Here are the common methods to merge layers in Photoshop:

1. **Merge Visible**: This option combines all visible layers into a new layer at the top of the layer stack. To do this, go to the top menu and choose *Layer > Merge Visible*, or use the shortcut **Ctrl+Shift+E** (Cmd+Shift+E on Mac).

2. **Merge Layers**: This option allows you to select specific layers and merge them into one. To do this, select the layers you want to merge in the Layers panel (hold down *Ctrl/Cmd** and click on each layer), then right-click on one of the selected layers and choose **Merge Layers*.

3. **Flatten Image**: This merges all visible layers into a single background layer. This is more drastic than merging layers selectively because it removes all transparency and creates a flat image. To flatten an image, go to *Layer > Flatten Image*.

When you merge layers in Photoshop, it's important to note that you're permanently combining the contents of those layers into one. This means you won't be able to edit individual layers separately after merging unless you undo the merge action (if done recently) or revert to a previous version of the file. Always ensure you have a backup or duplicate of your layers before merging, especially if you might need to make changes later.

Answer 3

Select all layers you want to merge on LAYERS palette and go to Layer > Merge Layers or press Ctrl + E keyboard shortcut.