Gerbview - is an application that packs all the necessary features for helping you view, print and markup Gerber, HPGL and EXcellon files.
Features
• View, print, markup and convert Gerber, HPGL/2, Excellon and raster formats.
• Convert Gerber, Excellon and HPGL/2 files to AutoDesk DXF, Adobe PDF and other formats.
• Convert multiple Gerber files to a multi layer PDF, DWF or DXF file.
• Query for entity information in Gerber, HPGL/2 and Excellon files.
• Measure distances, areas and perimeters, with our without snapping to pads and tracks.
• Both metric and imperial coordinates supported.
• Support for absolute or relative coordinates.
• Highlight selected apertures in Gerber files.
• Add files of different formats to a single workspace.
• No limit for number of files within a workspace (only limited by memory).
• TIFF, CALS, BMP, PNG and JPEG files can be added to a Workspace (for logos etc.).
• Rotate added files by any angle.
• Copy selected region to clipboard, and paste into another Windows application
• User defined header and footer for printing.
• Color or Black & White Printing.
• Scaled print or fit to paper.
• Full mode print preview.
• Poster mode for printing big format drawings on eg. multiple A4 pages.
• Print to all Windows supported plotter and printer devices.
• Save whole Workspace or single files as raster files. Supported formats includes: TIFF (CCITT-G4,CCITT-G3,Packbits), CALS, Adobe PDF, Windows BMP, PNG and JPEG.
• Add markup using lines, text, rectangles, images, polygons, arrows and ellipses.
• Powerful markup features such as highlighted, hatched or solid filled areas.
• Truetype fonts used for markup text entities.
• Ortho mode for fast drawing of horizontal and vertical markup lines.
• Fully customizable user interface.
Download: 
GerbView 10.26.0.531.rar - 52.6 MB