ColKlink

A speedy, effective and much appreciated reply. Thank you.

Hi, complete newb here. I've been using paint.net for some basic photo editing for awhile but I'm stuck on this one spot. I'm trying to anti-alias a diagram (a small cross section of the file is attached) that as you can see is heavily aliased but none of the plugins I've tried (antialias, feather, etc) have any effect at all. I'm cleaning up some original source files so I do not have a higher resolution image to work with, nor do I have the skill to redraw it from scratch at a higher res. Suggestions appreciated, thank you.