This article talks about filtering out visualization data but it specifically says that EPMDocument data cannot have visualization data filters.
https://www.ptc.com/en/support/article/CS163360?source=search
Recommend posting and idea to have this added as a feature. If its just CAD drawings, I might recommend a cleanup customization that you could run post import that would remove the duplicated representations and reset the previous to the default. Just out of curiosity, it is possible to republish those exactly in the target system. Are you confident that the results would be the same? That might offer you some new possibilities.
Thanks for your reply!
We cannot republish the documents in the target systems because the associated ECNs are not transferred, but information about them is shown in the exported visualization, and if we republish the documents this information will be lost.
We discover that there is the UfidMapping table in the DB, where (if I understand correctly) the object's borth UFID (imported object's UFID from the source system) and local UFID (generated in the target system after import) are mapped. But for DerivedImage it does not work. May be there is the approach to adjust the Export/Import Utility (through some handlers may be) to create UFID mapping for the DerivedImage and ignore importing the visualization if its UFID is already contained in the table?