Canevas size larger than 32000px

[gregober]

I have a large image made for printing and I am fighting with Pixelmator in order to have a canevas size larger than 270cm.

Everytime I try to setup canevas size to a size larger than 270, it bounce back to 270,93 (which = 32000 pixels).

How can I overpass this limitation?

thx !