Nikon Z9 Mirrorless Camera - Manual (Page 273)

273 Creating Retouched Copies
Trim
Create a cropped copy of the current photograph. The photograph is
displayed with the selected crop shown in yellow; create a cropped
copy as described below.
D Cautions: Cropped Pictures
• Depending on the size of the cropped copy, playback zoom may not be
available when cropped copies are displayed.
• The crop size appears at upper left in the crop
display. The size of the copy varies with crop
size and aspect ratio.
To Description
Size the crop Press X or W ( Q ) to choose the crop size.
Change the crop
aspect ratio Rotate the main command dial to choose the crop
aspect ratio.
Position the crop Use the multi selector to position the crop.
Save the crop Press J to save the current crop as a separate file.