pcd The .pcd extension is used by different applications of which the Kodak Photo CD Image format file is the primary format used by Kodak scanners. Other associations of this extension include Pure Component Data of ChemSep, Pokemon Wonder Card of Pokemon Nintendo DS and Point Cloud Data of PCL.
emf The .emf extension file is an Enhanced MetaFile format that is a spool format used as a backup for printing in Windows. It is the 32-bit version of the 16-bit WMF (Windows Metafile Format) files. It is a vector graphics file that saves images in RGB format that is compatible with most of the imaging applications.