Acrobat includes several tools that help you fine-tune the layout of a PDF.
Do any of the following:To turn on or off a layout tool, choose View > Grid, Rulers, or Guides.
To create a guide, turn on rulers, and then double-click at the desired location on the horizontal or vertical ruler.
To reposition a guide, drag it to a new location.
To snap objects to the grid, select View > Snap to Grid.