Linking layers

If we want to move a number of objects that occupy different layers we can do that by clicking the space next to the eye icon and a linked chain appears. Once linked we can move all the objects together or adjust sizes with the transform tools without having to merge all the layers together.

Adjustment layers

Adjustment layers can be created from the icon at the base of the layers palette. It offers us a choice of changes such as hue and saturation, levels, and many more. The real plus of adjustment layers is that we are never changing our original image so using black and white and our paint tools (as in layer masks) we can fine tune the changes we make. Better than that, adjustment layers can be saved to live another day and can even double clicked so that variations can be made to the original changes we made.

Merge visible layers

We will often find that it is more convenient to merge separate layers together at some stage of our manipulations. We can do this via layer > Merge Visible or via the shortcut keys Alt+Shift+E. This command will merge all the layers that we have turned on with the little eye icon.

Change your Background into a layer

This small task causes much confusion with Photoshop. Open an image and look in the layers and we find a thumbnail called background. This is not a layer and reacts differently to editing. For example we cannot erase to a transparent base. To convert our Background into a layer we need to hold down the Alt key and double click on the Background layer thumbnail. Alternatively double click the thumbnail and rename it, or drag it down over the copy icon and work on the copy.

Flatten to a new layer

In manipulations we may need all our layers flattened, but retain the flexibility of the original layers for future use. To do this we need to create a new layer at the top of our layered stack. (Ctrl+Shift+N) While holding the Alt key and selecting Merge Visible from the Layers palette Photoshop will place all of our chosen layers into our new layer. This will not affect our original layers, but will ensure untmost flexibility.

Blend Modes

The blend modes in the drop down menu inside the layers palette blend one layer with another. We do not need to have an in depth knowledge of what these blends do, use trial and error and you will find great effects. Hard light for montages is often very good.

Sorting out a Blend

A great way to see the effect of different blend modes is to hold down the Shift key and hit either the + or - to scroll through them.

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