There are a few things you need to know if you want to get the ruler on Photoshop. The first is that Photoshop has rulers in three different sizes: 1/4 inch, 3/8 inch, and 1 inch. You can also create rulers in other shapes, such as a straight line or a curve. The second thing you need is a ruler that is the right size for your image. You can find rulers in various sizes at most stores, but be sure to get the one that will fit your image perfectly. The third thing you need is a copy of Photoshop. If you don’t have Photoshop, you can download it from Adobe’s website. Once you have Photoshop, open the File menu and select “Ruler.” Then click on the “New Ruler” button and enter the following information: Width: The width of your ruler in inches. Height: The height of your ruler in inches. Line Width: The width of your ruler’s lines (in pixels). Line Height: The height of your ruler’s lines (in pixels). Now click on the “Create Ruler” button and enter the following information: Width: The width of your new ruler in inches. Height: The height of your new ruler in inches. Line Width: The width of your new ruler’s lines (in pixels). Line Height: The height of your new rule’s lines (in pixels). Now click on the “Save As” button and name your new file “ruler_1_inch.”