I noticed that Gravit Designers offers PDF export at 300 DPI. I am interested in 600 DPI PDF export, so that I can print fine line-art on a laser printer that is capable of this resolution (at least for CMYK primary colors). I want to be able to print fine lines that are 0.12 pt in stroke thickness (which is 1/600 in or 1/100 pica).
In order to do this, I need the ability to export the vector drawing as a 600 DPI PDF file. Is the 300 DPI PDF export limitation of Gravit configurable or is it hardcoded and there is no way to do 600 DPI export for 8.5 in x 11 in standard letter size pages?
One other option is to export the finished artwork as a 600 DPI PNG (raster) file, but I need for the color profile within this file to be CMYK. Is this possible as an alternative to 600 DPI PDF export (which would be preferred)?