Step 1: Create a New Layer Drag the layer onto the Create New Layer icon (Command-J or Control-J) so that you can work non-destructively. You can convert this new layer to a Smart Object (Layer > Smart Objects > Convert to Smart Object) to be able to change your settings without ...
Patterns used by Photoshop and other image editors are usually just small photos that those programs repeat over a canvas to create a pattern. There isn't really a good reason to convert one to a different file format. However, since they are images that open in graphics programs like the ...