This font problem in kpdf persists even in 6.10. Some files are probably worse than others, but a very simple PDFLaTeX generated file will demonstrate the problem. The more the document is zoomed out, the worse the effect.
See http://www.proxc.com/kpdf/ for 4 files - a test pdf file, and screenshots at 150% for kpdf in Kubuntu 6.10 and FC6 and xpdf in Kubuntu 6.10. The differences are smaller at this zoom level, but still very noticeable (especially lower case i's).
This font problem in kpdf persists even in 6.10. Some files are probably worse than others, but a very simple PDFLaTeX generated file will demonstrate the problem. The more the document is zoomed out, the worse the effect.
See http:// www.proxc. com/kpdf/ for 4 files - a test pdf file, and screenshots at 150% for kpdf in Kubuntu 6.10 and FC6 and xpdf in Kubuntu 6.10. The differences are smaller at this zoom level, but still very noticeable (especially lower case i's).