APN's Wanganui printing plant is being closed, with the loss of 21 jobs.
An APN spokesman confirmed the jobs would be lost as APN looked to rationalise its printing operations.
Engineering, Printing and Manufacturing Union (EPMU) print and media industry organiser Paul Tolich described the announcement as "a sad day for Whanganui".
The closure had been flagged for some time so union members weren't surprised, he said.
"But it's always sad to see jobs being lost, especially when there isn't a lot of work out there, especially in the regions."