This format is applied in universal vector graphics in Windows applications. It’s used to store collections of graphical drawings. It stores data in the RGB range, not supporting the CMYK system. It can be used as the graphics language for a printer driver. It has a 16-bit structure.
This format was used for storing databases on the Pegasus and Palm PDA devices. Besides images, PDB allowed you to store tables, maps, e-books, and other data in a structured way. Today it has become obsolete and has been replaced by more flexible formats with DRM protection.