Using rulers, columns, the measure tool, guides, and the grid

Rulers, columns, the measure tool, guides, and the grid help you position images or elements precisely across the width or length of an image.

Note: You can also align and distribute parts of an image using the Layers palette. (See Repositioning the contents of layers.)

Related Subtopics:

Using rulers
Using columns (Photoshop)
Using the measure tool (Photoshop)
Using guides and the grid