> Basic technologies like PDF rendering used to be stuff that they had nailed down extremely well. I have yet to find a pdf viewer which does anti-aliasing rig

> Basic technologies like PDF rendering used to be stuff that they had nailed down extremely well. I have yet to find a pdf viewer which does anti-aliasing right except acrobat reader. If you have two colored objects with a common edge on a white background, that edge will be lighter in color.