Changing IFS Object Ownership

I have a client who has users that run a process that creates a PDF file in
the IFS.

When it's done they would like to change the owner of the PDF file from the
user that ran the process to a generic user. This is so that when that
user leaves and they want to remove the User ID they won't have a whole
bunch of objects owned by them.

I haven't found a way to do this without granting more authorities to the
user that created the PDF itself.

I suggested running the process under a different ID but at this point I
don't think that's an option.

Another option I can think of is do it nightly to CHGOWN using QSECOFR or
something to do it and just do it for an entire directory.

Thanks!

Brad