The proofreader should see to it that:

1. The dateline, volume and number, and folio are correct and in their proper positions.
2. The stories carry their proper headlines.
3. The cuts are straight, properly placed, and correctly captioned.
4. The lines of types and column rules are straight.
5. The headlines are typographically correct and well-written.
6. “Continued” lines and jump heads are properly placed.
7. Erratic compositions like transposed or inverted letters and loose types are set right.
8. Depth of pages and margins are checked.
9. Poor leading (pronounced leding) or spacing between lines are avoided.
10. Stray bold or light face lines have not crept in.
11. Long stories, usually more than three-inch deep, have subheads. 
12. All killed materials have been deleted.

Ethically and professionally speaking, a proofreader should bear in mind that proofreading is no time for copyreading. This is one grave reason why many school papers do not come out on time.