Gerber and PCB File Format

Printed circuit boards are designed on a specialized electronic design automation (EDA) or a computer-added design (CAD) system. The software has its own PCB data or common data for manufacturing FR4 PCB, Flex Circuit, Flex-Rigid PCB and metal core PCB (MCPCB).

What Are Gerber Files?

The mostly common and widely accepted for PCB fabrication is Gerber files, which is compressed in a zip or rar folder. The Gerber format is an open ASCII vector format for 2D binary images. There are 2 major generations of Gerber format: Extended Gerber, and RS-274X. This is the current Gerber formats. In 2014, the graphics format was extended with the option to add meta-information to the graphics objects. Files with attributes are called X2 files; those without attributes are X1 files.

Gerber Files Extension:

File Extension

Description

.APR

Aperture File

.APT

Aperture File

.EXTREP

Extension Report of Gerber Files

.REP

Report of Individual Layer Used Aperture List

.RUL

DRC Rules

.GKO

Keep Out Layer

.GTO

Top Overlay

.GBO

Bottom Overlay

.GPT

Pad Master Top

.GPB

Pad Master Bottom

.GTS

Top Solder

.GBS

Bottom Solder

.GTL

Top Layer

.GBL

Bottom Layer

.GTP

Top Paste

.GBP

Bottom Paste

.G1, .G2, etc.

Mid-layer 1, 2, etc.

.GP1, .GP2, etc.

Internal Plane Layer 1, 2, etc.

.P01, .P02, etc.

Gerber Panels

.GM1, .GM2, etc.

Mechanical Layer 1, 2, etc.

.GD1, .GD2, etc.

Drill Drawing

.GG1, .GG2, etc.

Drill Guide

.DRL

Drill Data

.TXT

Drill Position

.DRR

Drill Tool Size

.LDP

Layer Pairs Export File for PCB


Software

Accepted formats

Altium Designer

*.PCB/.PCBDOC

Eagle

*.BRD

ODB++

*.zip/tgz

* We support these top paid layout software.

PCB Design Software Support:

Software

Company

Altium Designer

Altium

PADS

Mentor Graphics

Allegro & OrCAD

Cadence

Eagle

Autodesk

No matter which PCB layout software you use, and no matter which PCB file format you adopt, all PCB files provided to the PCB manufacturers will be converted to Gerber format for printed circuit boards fabrication. All PCB manufacturers prefer Gerber files provided by customers, but MADPCB also supports original PCB files.