FileInfo.com


.PDM File Extension


File Type 1 VB Project Information File  (Most common)
File Format File
Common? No
File Description Text file containing one or more scripts along with information about the packaging and deployment of a Visual Basic (VB) application; includes all necessary files, installation locations, and the name of the script(s).

When additional deployment packages are created for a project; new package/deployment scripts are written to the beginning of the project's PDM file.
Program(s) that open pdm files Windows: Microsoft Visual Basic; Edit with a text editor

File Type 2 PowerDesigner Database File
File Format Proprietary File
Common? No
File Description Database created with Sybase PowerDesigner, an enterprise modeling and design program; stores database information as well as references to other files, such as the database definition (.XDB) file and model definition (.XEM) files.

PDM files can also be opened with Quest Software's QDesigner, which was discontinued in 2006.
Program(s) that open pdm files Windows: Sybase PowerDesigner; Quest Software QDesigner

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/pdm