Gerber bottom pad master data
File type: 3d graphics, CAD-CAM-CAE file
A gpb file contains Gerber data for the bottom pad master layer of a printed circuit board (PCB).
It is a PCB manufacturing file used with ViewMate Pro and Altium Designer.
Found 2 different file type records with the same gpb filename suffix.
File type category:
3d graphics, CAD-CAM-CAE file
Date updated: October 16, 2026
The gpb file extension identifies Gerber bottom pad master data. The file describes the positions and shapes of pads on the bottom side of a PCB, allowing the layer to be viewed or used as part of the board manufacturing output.
A GPB file represents one manufacturing layer rather than a complete PCB design. Gerber files are used by printed circuit board manufacturing machines to lay out electrical connections such as traces, vias, and pads. They can also contain information for drilling and milling the completed circuit board. Other manufacturing files provide other board layers and production information, such as copper, solder mask, silkscreen, drilling, or milling data.
ViewMate Pro and Altium Designer support this type of Gerber data on Microsoft Windows. Gerber remains a commonly used format for exchanging PCB manufacturing data, although the exact file extensions used for individual layers can vary between design and manufacturing systems.
On Microsoft Windows, open the gpb file in ViewMate Pro or Altium Designer. These programs can display the bottom pad layer and, where supported, use it with other PCB manufacturing layers.
A GPB file is a manufacturing layer, not a complete editable PCB project, so opening it will not provide the original schematic or full board design.
A gpb file normally does not need conversion because it is already manufacturing output. To create a different set of PCB production files, the preferred method is to open the original board design in Altium Designer and regenerate the required outputs.
ViewMate Pro and other compatible CAM tools may provide export options for the loaded layer, depending on the target format. Such an export generally represents only the bottom pad data and does not recreate the complete PCB design.
Software applications that can open gpb files:
Microsoft Windows
Software applications that can edit gpb files:
Microsoft Windows
Software capable of saving gpb files:
Microsoft Windows
Software apps that create gpb files:
Microsoft Windows
Software apps that import gpb files:
Microsoft Windows
Software apps that export gpb files:
Microsoft Windows
Software applications that handle other tasks involving gpb files:
Microsoft Windows
File type category:
Settings, options, themes or skins file
Date updated: June 22, 2019
The gpb file extension is used by Genie Backup Manager, a data backup solution for Microsoft Windows operating system, developed by Genie9.
The gpb file contains configuration of Genie9 software.
Probably not meant to be accessed by the user.
Probably cannot be converted to anything else.
Software apps that manage or store settings in gpb files:
Microsoft Windows
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