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Image

What is a .pdb file?

A .pdb file is a Portable Database (version 1). This is an image format — a picture, drawing or graphic. Confusingly, this extension has been used by 10 different formats over the years — they're all listed below.

This extension has been used by more than one format

10 different formats have claimed .pdb over the years, so two files with the same extension aren't necessarily the same kind of thing.

How to open a .pdb file

  • GIMP (free) and IrfanView open a very wide range of image formats, including obsolete ones.
  • XnView MP is the best bet for unusual or legacy image types.
  • Your operating system's built-in viewer may work for mainstream formats.

The registry records this extension against Portable Database, PowerProject Teamplan, Protein Data Bank File and others, so software from that family is the most likely match.

How to convert a .pdb file

  • Open it in GIMP or XnView and export as .png (lossless) or .jpg (smaller).

The technical record

For archivists, developers and the merely curious: these are the PRONOM registry entries for .pdb.

Format nameVersionMIME typePUID
Portable Database1—fmt/1064
PowerProject Teamplan——fmt/510
Protein Data Bank File3.3—fmt/2009
Portable Database2—fmt/1065
Broderbund Print Shop Deluxe5-6—fmt/1299
Microsoft Program Database7.00—fmt/1079
Microsoft Program Database2.00—fmt/1078
Portable Database3—fmt/1066
Palm Database ImageViewer Format——fmt/1654
Broderbund Print Shop Deluxe1-4—x-fmt/168

Got another one?