Image Editing: Layers & Masks

What is the advantage of using layers?

• You can edit and restack components of a document individually.
• Layers keep the file size small.
• Layer pixels are editable, whereas the original Background pixels are not.

What shortcut do you use to duplicate a layer or the Background?

• Cmd+J / Ctrl+J
• Cmd+D / Ctrl+D
• Cmd+C / Ctrl+C

When you create a new, blank layer, where does it appear in the Layers panel?

• Above one of the following: A selected layer, a selected collapsed group, or a selected layer in an expanded group
• Always above the topmost layer
• Always just above the Background

How do you activate a layer on the Layers panel?

• Click the layer listing.
• Cmd-click/Ctrl-click the layer listing.
• Double-click the layer thumbnail.
• Click the visibility icon for the layer.

Only one layer can be selected at a time.

• True
• False

How do you move a layer to a higher position in the stack?

• Click the layer listing, then press the Up arrow on the keyboard.
• Right-click the layer listing and choose Move Upward from the context menu
• Drag the layer listing upward to the desired stacking position.

What does the padlock icon next to the Background listing on the Layers panel indicate?

• The Background can't be dragged upward in the layer stack.
• The pixels on the Background can't be edited.

What is the function of the visibility icon in the left column on the Layers panel?

• It controls whether the layer contents are visible.
• It controls whether layer effects on the layer are visible.
• It controls whether the effect of adjustment layers above the layer are visible.

What is the quickest way to duplicate the contents of the Background?

• Click the background, then press Cmd+J / Ctrl+J
• Drag the Background upward (a duplicate layer is created).
• Marquee the Background contents with the Rectangular Marquee tool, create a new layer, the press Cmd+V / Ctrl+V (Paste command).

Which tool would you use to reposition a layer (e.g., move it horizontally or vertically)?

• Move tool
• Ruler tool
• Path Selection tool
• Hand tool