Adobe Photoshop is a graphics program that can be used for anything from photo editing to illustration. However, it also has some practical uses that you might not know about. Creating graph paper is just one of many things you can do with the software. There is no quick tool to create a grid, but in a few minutes, you can create you own custom grid to use as graph paper.
Create a new document that is the size of one grid square. Common graph paper sizes are usually 1/4-inch or 1/8-inch, but you can choose any size you want.
Select the whole area of the square ("Ctrl+A") and then move this selection to create a border on the top and left sides of the square. You can either drag the selection or use the arrow keys. Ensure that the border is even on both sides.
Select the border by inverting your selection. You can open the "Select" menu and choose "Inverse" or press "Ctrl+Shift+A."
Choose your grid line colour and fill this selection with the Paint Bucket or Paintbrush tool.
Select the whole square again, click on "Edit," choose "Define Pattern" and save the pattern as "graph paper."
Create a new document the size of graph paper you want to create.
Select the Paint Bucket tool and choose "Pattern" from the "Set Source for Fill" drop-down in the toolbar at the top of the screen. Click on the pattern icon and choose the "graph paper" pattern.
Click inside the image to fill the new document with the graph paper pattern.