I think that low resolution, pixelated images generally look unprofessional. While working with postscript files may not always be fun, the results are far superior to most screen captures.

Even if you don't need a high resolution image, taking a little extra time will result in a more readable, visually appealing picture. It is not too difficult to convert a postscript file to a bitmap, then downsample it to the final resolution. The result can be a smooth, anti-aliased image.

- Lee