Photoshop is a powerful image editor that you can use to change letter spacing in your document. To do this, you will need to open the “File” menu and select “Open with…” Then, select " Photoshop “. Once the program has opened, click on the “Lines” tab and then click on the “Spacing” button. This will open a dialog box that will allow you to change the letter spacing in your document. You can choose to have all letters at once or individual letters be spaced out according to their size. Once you have chosen how you want your document to look, click on the “OK” button and then close Photoshop.