Can't increase the DPI for an image in the node version

[hannguyen10]

When I generate an nft marker in the node version the default dpi is 72.
But when I try to increase the dpi with the settings -max_dpi=<max_dpi> and -min_dpi=<min_dpi>
I always get a warning that the max dpi is larger that maximum allowable even when I use an image with an dpi of 300.
Is there a way to fix it?