We use Altium Schematic file(*.sch,schdoc), but pdf is also accepted
We use Altium pcb file(*.pcb,pcbdoc), but pdf is also accepted
THe Gerber format is an open 2D binary vector image file format.
It is the de facto standard used by printed circuit board (PCB) industry software to describe the printed circuit board images: copper layers, solder mask, legend, etc.
The standard file extension is .GBR or .gbr though other extensions are also used.
There are two major generations of Gerber format:
Extended Gerber, or RS-274X. This is the current Gerber format.
Standard Gerber, or RS-274-D. This obsolete format is deprecated. It is superseded by Extended Gerber.
Other Gerber format
ODB++-- a CAM format from Mentor Graphics.
DXF -- Used as drawing, PCB objects (tracks and pads) are lost, which makes them very difficult to use in CAM.
The Excellon format is widely used to drive CNC drilling and routing machines in printed circuit board (PCB) manufacturing. It is a variant of the EIA RS-274-C standard.
A typical Drill file need the following: Drill diameter or Drill data(bold) and Drill location(non bold).