Step 1:  Create a new blank 3 by 3px document with a transparent background (the transparency is very important).  Now, using the Zoom Tool, zoom in as far as Photoshop will let you - to a dizzying 1600%.

Step 2:  With the Pencil Tool selected, draw a single black dot in the middle of the background layer.   Now choose Select > All from the menu and save your pattern with Edit > Define Pattern.  You can call your pattern whatever you like - 'dots' sounds good though...   :)

Step 3:  Now close your image.  There is no need to save it - the pattern is now permanently stored in Photoshop.  To apply the pattern to an image, find an adequate design,  create a new transparent layer and go to the Edit > Fill dialog. Select Pattern from the Use combo box, and then find your dots pattern in the Custom Pattern area.  It'll probably be towards the bottom of the library. Then press OK and admire your handiwork!  :)

Variations:  It should be borne in mind that the patterns you create using this method will be a little harsh at 100% opacity, so reduce the setting a little.  You may also want to alter the blending mode to Soft Light or similar.  This method can, of course, be used to create more than just dots!  Just look below for a few more overlays, with the simple pattern used to create them shown in the top left corner. Have fun trying them all out!

2px by 1px Horizontal

10px by 10px Little Boxes

3px by 3px  45° Diagonals

view all