https://www.labeljoy.com/help-lj6/aztec/
Aztec Code is a type of 2D barcode invented by Andrew Longacre, Jr. and Robert Hussey in 1995. The code was published by AIM, Inc. in 1997. Although the Aztec code was patented, that patent was officially made public domain. The aztec code is also published as ISO/IEC 24778:2008 standard. Named after the resemblance of the central finder pattern to an Aztec pyramid, Aztec code has the potential to use less space than other matrix barcodes because it does not require a surrounding blank "quiet zone".*

https://www.labeljoy.com/es/ayuda-lj6/aztec/
El aztec code también fue publicado en el estándar ISO/IEC 24778:2008. Denominado en honor al patrón de búsqueda central sobre la pirámide Azteca, el Aztec code posee el potencial de utilizar menos espacio que otros códigos de barras matriciales debido a que no requiere una zona blanca circundante “zona muda”.*

http://www.flyerzone.co.uk/blog/printing-dictionary-bleed-bo...
Quiet zone: area or print kept free of text or logos to prevent issues in trimming.


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Note added at 1 day 2 hrs (2020-02-09 12:26:52 GMT) Post-grading
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Thanks.