PDF (adobe.com)

Use rulers, guides, and the grid



Rulers, guides, and the grid are drawing aids that help you to place and align objects. Guides are lines that you drag onto the document canvas from the rulers. You can use guides to mark important parts of your document, such as the margins and the document center point. The grid displays a system of horizontal and vertical lines on the canvas for precise placement. Guides and grids do not reside on a layer and are not exported with a document.

To change grid size or guide and grid color, see Guides and Grids preferences.
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Show and hide rulers

 Select View > Rulers.

Vertical and horizontal rulers appear along the margins of the document window. Rulers measure in pixels.

Create a horizontal or vertical guide

  1. Click and then drag from the corresponding ruler.

  2. Position the guide on the canvas and release the mouse button.

    Note: You can reposition the guide by dragging it again.

Move a guide to a specific position

  1. Double-click the guide.

  2. Enter the new position in the Move Guide dialog box, and click OK.

Show or hide guides or the grid

 Select View > Guides > Show Guides or View > Guides > Show Grid.

Snap objects to guides or to the grid

 Select View > Guides > Snap To Guides or View > Guides > Snap To Grid.

Lock or unlock all guides

 Select View > Guides > Lock Guides.

Remove a guide

 Drag the guide off the canvas.

Display distance between guides

 Press Shift when the pointer is placed between the guides.

Press Shift while dragging guides into the canvas to display the distance between guides.