Xara Xtreme Pro 4 only allows me to export 300 dpi files. When I create files that are larger than 36" x 48" I get an error about maximum file size or maximum dimension.

Very often the maps I design, I print at full scale with a larger format inkjet printer. I can print larger than 36 x 48, but Xara won't let me design bigger than that. That's my issue.

GP