A person who adjusts or arranges text and copy to fit properly within designated spaces in printed publications or layouts.
From 'copy' (text) and 'fitter' (one who adjusts to fit), a specialized role in pre-digital publishing and design.
Before computers could automatically reflow text, copyfitters were puzzle-solvers who'd trim a paragraph here, adjust a line break there, and work with designers to make every article fit its allotted space.
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