The Gerber format is a file format used by printed circuit board (PCB) industry software to describe the images of a printed circuit board (copper layers, solder mask, legend, drill holes, etc.). The Gerber format is the de facto industry standard for printed circuit board image transfer.
The Gerber format specification can be freely downloaded.
There are two versions. RS-274X ("extended Gerber") is the most commonly used today. The previous version was a subset of EIA RS-274-D ("standard Gerber"); it is deprecated and is largely superseded by RS-274X.
The Gerber format was developed by Gerber Systems Corp., a company founded by Joseph Gerber. The format is now controlled and owned by Ucamco through its acquisition of Barco ETS, a company that previously acquired Gerber Systems Corp.
Read more about Gerber Format: Introduction, RS-274X Extended Gerber, RS-274-D Standard Gerber, Timeline, Related Formats