# ISSN Barcode Generator

Generate the EAN-13 barcode for a magazine, journal or newspaper from its 8 character ISSN. The tool verifies the ISSN check digit, builds the 977 EAN number with the sequence variant you choose and can add a 2 or 5 digit issue add-on. Publishers get the barcode with the ISSN line above it as a PNG image or an SVG file, with adjustable scale and bar height.

## Frequently asked questions

### What do I enter in the ISSN Barcode Generator?

Enter the ISSN with or without its hyphen, for example 0317-8471, or the first 7 digits to have the check digit calculated. The last character may be X. A leading ISSN label is ignored.

### How is the ISSN check digit verified?

The first 7 digits are weighted 8 down to 2, summed, and the check digit makes the sum divisible by 11, with X standing for 10. A wrong check digit is refused and the correct one is named in the message.

### How does the ISSN become an EAN-13 number?

The EAN number starts with 977, followed by the first 7 digits of the ISSN, the 2 digit sequence variant and a new EAN check digit. The ISSN's own check digit is not part of the EAN number.

### What is the sequence variant?

The two digits after the ISSN in the EAN number, usually 00. Publishers use other values to distinguish price variants or different editions of the same issue. The field accepts exactly two digits.

### What is the issue add-on?

A 2 digit add-on carries the issue number, for example 05 for the fifth issue or the week number of a weekly. Some countries use a 5 digit add-on. Enter it in the add-on field or leave it empty.

### Which format should I choose for the ISSN barcode?

SVG is a vector file that stays sharp at any size, which suits print artwork and design software. PNG is a raster image that works everywhere, including office documents and label printers. Both have a white background and a white margin around the symbol.

### Can I change the size and text?

Yes. The scale from 1 to 10, default 3, sets the size, the bar height accepts 5 to 50 millimeters, and the human readable text option turns the digits and the ISSN line on or off.

### Where do I get an ISSN?

ISSNs are assigned free of charge by the ISSN National Centre of your country, coordinated by the ISSN International Centre in Paris. This tool only draws the barcode.

### Do newsstands accept this barcode?

The barcode follows the GS1 rules for serial publications. Distributors may require a specific sequence variant or add-on scheme, so check their requirements before printing.

### Is my data stored?

No. The ISSN is used only to draw the image, which is limited to 4000 pixels on a side.

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