Hmmm - is possible that you could read the Oracle documentation about Backup and Recovery and discover the answer yourself?
Oracle spent MILLIONS of dollars writing that documentation and it has the answer you are looking for.
Please read it and follow the examples in it.
It is certainly possible. It just depends on how you want to do it and what version you are on. For example hot cloning of pdbs was not available in 12.1, but works like a charm on 12.2.
Can you tell us the version you are using?
Do I understand well that you just want to duplicate one pdb from cdb1 to cdb2?
Strictly talking, the answer is no. You can't restore a standard PDB backup into a different CDB. You are backing up a PDB which local dictionary is still interlinked with a specific CDB. It should be unplugged and then plugged-in (created) into the new CDB; in that action, its local dictionary it's linked to the new CDB$ROOT dictionary.
You may want to clone the PDB or make a PDB backup for transport. Just as examples, you have plenty of options.