The Allegro Free Physical Viewer is a complimentary software tool provided by Cadence Design Systems. It allows users to open, view, and plot databases from Allegro PCB Editor, OrCAD PCB Editor, and Allegro Package Designer. The "Physical" aspect refers to its ability to handle the actual layout files (.brd) rather than just schematic logic.
To download the , you should primarily look for the official legacy installer or utilize the current Allegro X Free Viewer which is backward compatible with 16.6 databases. 📥 Download Options cadence allegro free physical viewer 16.6 download
Because this is the Free Physical Viewer , you do not need a license server. However, the software sometimes looks for one. Go to Edit > User Preferences > Paths > Library. Ensure no license server is forced. Alternatively, add an environment variable: CDS_LIC_ONLY=1 to force viewer mode. The Allegro Free Physical Viewer is a complimentary