You may wish to set a limit for the size
of the image pack.
The Limit pack size window allows you to impose
limits on the pack size.
By default the pack automatically changes
size to accomodate the listed sprites.
However, there is a maximum size of 2048 by 2048.
Set the width/height limits using the
comboboxes.
Tick the Auto-Resize checkbox to allow Image
Packer to set the pack size as required.
The sizes available are in powers of 2:
16, 32, 64, 128, 256, 512, 1024, and 2048