Hi @sns ,
What do you mean by "retire document from library"? Can you talk about it in detail?
My understanding is that you don't need to use this document for the time being, and you don't want others to see its existence, but you want it to be archived in this library in case you need to use this document in the future, or just archive it as a historical record (only seen by you alone)?
If, as I described, you want to keep it as an archive from others, you can stop inheriting permission and set unique permissions on the document so that no one without permissions can see it, except yourself. When you need to use it again later, you can delete the unique permission and inherit the original one.
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