GerbView is an application that enables you to view, print, convert, and markup Gerber, HPGL/2, Excellon, PDF and raster files. GerbView supports both RS274D and RS274X
Gerber formats. You can use GerbView to convert from the old RS274D Gerber standard to the new RS274X with embedded aperture information. Gerbview will visualize your design, on the screen or in hardcopy. In GerbView you work with a workspace that can contain one or more files of the supported file formats. The workspace can be saved for later use. The saved workspace will link to your design files, so only need to reload the workspace file to see the whole design. Features include rotate added files by any angle, copy selected region to clipboard and paste into another Windows application, user defined header and footer for printing, scaled print or fit to paper, full mode print preview, poster mode for printing big format drawings, and add markup using lines, text, rectangles, images, polygons, arrows, and ellipses. These markups elements can be "burned-in" to be part of a Gerber layer. With the builtin PDF to CAD function you can convert your PDF files to Gerber or Autodesk DXF.