PDB, Program Database (.pdb)
The PDB Database file format
The PDB file format is the standard database format used by Palm based PDA devices, Pegasus, Quicken, and more. This data format stores various types of data like eBooks, word processing documents, images, maps, spreadsheets etc in a structured format. It's crucial to know which program created the PDB file in order to open it. Only the programs responsible for the creation of the file can display and process it correctly.
Technical details of PDB files
PDB files are used in the C++ programming language. It is most commonly associated with the PalmPilote mobile devices. It supports reflowable content but lacks some of the features found in modern eBook formats (e.g. only providing basic content tables). The PDB file format was designed for low storage capacity on Palm devices in the 1990s and because of that it featured RLE compression.