Clearview is a very good PDF reader

I have used Preview and Acrobat extensively, along with Skim, PDFPen (and a lot of other PDF readers / annotators). Clearview is by far the most useful for many everyday tasks. Most notable for me are two features. First, Clearview is a tabbed viewer — the merits of this feature speak for themselves (surprisingly, Clearview is the only tabbed PDF reader as far as I know). Second, Clearview is much nicer than Preview at managing annotations. For instance, clearview does away with the foolish font Preview uses for notes. These are two features that stand out for me. In my view, this developer is doing very good work, and his product deserves the support of customers seeking a clean, user-friendly, PDF reader/annotator.

Prof_biz about Clearview