Printable Pd Ruler - Web print this free online ruler to measure your pupillary distance (pd) without scaling or using a friend or a mirror. Web download and print this pdf file to measure your pupillary distance (pd) with a simple ruler. Follow the instructions to fold, align,.
Web print this free online ruler to measure your pupillary distance (pd) without scaling or using a friend or a mirror. Follow the instructions to fold, align,. Web download and print this pdf file to measure your pupillary distance (pd) with a simple ruler.