Cuprum

Cuprum is a multi-layer Gerber and Excellon viewer for the Mac platform. It supports viewing (and printing) multiple layers at the same time. A QuickLook plugin is integrated in the app, so you can preview files in the Finder and other apps. Features: -Reads Gerber and Excellon files -Supports Gerber X2 -Measurement tool with advanced snap. -Cuprum allows full zooming and navigation of the image with an intuitive interface whether you use a trackpad, magic mouse, normal mouse or pen tablet. Even your 3DConnnexion 3D mouse is supported! -It can also zoom to actual size, which corrects for different monitor DPI’s, so actual size is actually actual size. -Multi-page print out (or PDF generation via the print panel) is supported with variable scaling and presets for actual size and page fill. Frames can be added with string substitution. -A QuickLook plugin is integrated which allows Finder to show a preview of a document. -Selection of objects, allowing inspection of all properties. -Highlighting of connected copper.