Inkscape is vector not pixel based, and currently only the
one raster file format is offered for export (only one
natively, others are through extensions) so this seems a bit
beyond the normal scope of inkscape. However if a developer
were to submit patches there would be a much better chance
of the feature being accepted.
most likely you would be expected to export the files and
post process them in some other applications for the non
square pixels you need.
if you could describe a workaround it might be useful to
other users
Inkscape is vector not pixel based, and currently only the
one raster file format is offered for export (only one
natively, others are through extensions) so this seems a bit
beyond the normal scope of inkscape. However if a developer
were to submit patches there would be a much better chance
of the feature being accepted.
most likely you would be expected to export the files and
post process them in some other applications for the non
square pixels you need.
if you could describe a workaround it might be useful to
other users