ISSN-13 barcode images for your magazine/journal/newspaper. Please enter your ISSN number into the “ISSN number” box (or “additional information” box) of the online payment form. If you require your barcode in EAN13+2 format (with a 2-digit supplement to represent the issue number), please request this in the “additional information” section. Your barcode images will be emailed to you in 5 formats (jpeg, eps, tiff, bmp & pdf).