The New Zealand Herald will switch to a tabloid/compact format for its weekday issues from September.
In announcing the move, the Auckland-based broadsheet spoke of undergoing "the biggest transformation in its 150-year history".
Martin Simons, chief executive of the paper's owner, APN News & Media, said: "We've been testing the concept with our readers and had excellent feedback."
The Herald's weekend issue will remain a broadsheet.
Sources: NZ Herald/The Australian/TVNZ