When you backup your databases (.pdm) in PowerDesigner, one or more backup files will be generated which perhaps also include .bpb files. This is the only viable pdm to bpb conversion we can think of. If you are looking for something else, please write in the discussion below.
Convert PowerDesigner database to PowerDesigner business process backup file.
We have found one software suitable in our database for this conversion.
Microsoft Windows software - convert pdm to bpb on Windows
PowerDesigner is the industry-leading business process / data modeling software and metadata management solution for data architecture, information architecture and enterprise architecture. The latest release is version 16.
Convert from pdm file
to bpb file
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.