ISBN

An ISBN barcode is a variant of EAN-13 that is used to identify books.

Also known as: ISBN-13, International Standard Book Number, Bookland EAN, Bookland EAN-13.

Variants:

ISBN-10 is a legacy format that was depreciated for public use after 1st January 2007.

Standards: ISO 2108, ISO/IEC 15420, BS EN 797, GS1 General Specifications.

The data should contain twelve or thirteen digits separated appropriately by dash characters -.
The data can also be provided in legacy ISBN-10 format as nine or ten digits separated appropriately by dash characters -. This will be automatically upgraded to the ISBN-13 format.
If the last digit of the primary data is not given then the ISBN check digit is calculated automatically, otherwise it will be verified.
The primary data can optionally be followed by a space then two or five digits if an EAN-2 or EAN-5 add-on is required.
- A five-digit add-on is typically used to represent the price supplicant.
- A two-digit add-on is not typically used with ISBN.
The includetext option should normally be supplied.
The guardwhitespace option enables the display of whitespace guard marks.
The following options are also relevant to this barcode symbology:
- isbntextfont: PostScript font name for text above symbol
- isbntextsize: Font size for the text above symbol, in points
- isbntextxoffset: Horizontal position of ISBN text, in points
- isbntextyoffset: Vertical position of ISBN text, in points
Deprecated. The legacy option prevents ISBN-10 input from being upgraded to ISBN-13 and will result in a symbol that is obsolete and should not be used at point of sale.

Identical symbols, input provided with and without an ISBN check digit:

Data:    978-1-873671-00-9
Options: includetext
Encoder: isbn

Data:    978-1-873671-00
Options: includetext
Encoder: isbn

Data:    978-1-873671-00-9 54499
Options: includetext guardwhitespace
Encoder: isbn

The following ISBN-10 input will be automatically upgraded to a valid ISBN-13 symbol:

Data:    1-86074-271-8
Options: includetext
Encoder: isbn

Data:    1-86074-271
Options: includetext
Encoder: isbn

Note that ISBN-10 is legacy format not for use at P.O.S.

The following will generate an obsolete ISBN-10 symbol:

Data:    1-86074-271-8
Options: legacy includetext guardwhitespace
Encoder: isbn

Data:    1-86074-271
Options: legacy includetext guardwhitespace
Encoder: isbn

ISBN - bwipp/postscriptbarcode GitHub Wiki