copy editing
US /ˈkɑː.pi ˌed.ɪt.ɪŋ/
UK /ˈkɑː.pi ˌed.ɪt.ɪŋ/

1.
the process of reviewing and correcting written material to improve accuracy, readability, and adherence to style
:
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The book went through extensive copy editing before publication.
•
Her job involves meticulous copy editing of academic papers.