I am stuck into a problem several days, i can't figure out how to get clean edges, even if i used a high resolution 600 dpi (when exporting to png) but the edges seems jagged when i view the design in print on demand website.
i drew the line art in inkscape version 0.92.3 with bezier tool this is the link : there are jaggies in the beard of marcus aurelius design the image in the previewer of teespring
I tried to export as pdf but i can't remove the background from the pdf (and teespring don't accept pdf),
how can the others have good clean edges in their design ?
Edit: there is another design i tried with simple text that i drew with bezier but i have the same problem
and it's look like that in the previwer jagged text
and here is the link with new png with size 9000 * 10800px enter link description here