Automatic
Creates a layout that positions the caption to maximize the imageable area. If it fits, it is positioned at the bottom; otherwise at the right, relative to the proof.
Top
Creates a layout that places a caption at the top of each proof or sheet.
Bottom
Creates a layout that places a caption at the bottom of the proof or sheet.
Left
Creates a layout that places a caption on the left side of each proof or sheet.
Right
Creates a layout that places a caption on the right side of each proof or sheet.