This quick and easy tutorial will show you how to add a tiny, faint grid to your images.
Open up the image you want to grid.
Go to Effects > Texture Effects > Blinds. Change your settings so they are similar to mine, but once you’ve completed the tutorial you might want to do it again with a different opacity depending on your image.
Go to Image & Texture Effects > Blinds again, but this time check the box that says ‘Horizontal’, and press ‘Ok’. If you’re happy with the effect, save!