The Ultimate PDF Reader Roundup
By Werner Ruotsalainen
(Note that a cleaned up and extended, easy-to-digest version of this article – without the lengthy section on the chart – will be published in the iPhone / iPad Buyer's Guide. Go buy it ;-) ).
The iPad offers an excellent way of reading PDF files. While you can do this right in Safari (with web based PDF's) or can freely download Apple's own iBooks, it may be still worth checking out how almost all (!) the currently available PDF reader solutions. Knowing what the alternative PDF readers are capable of is essential as reading online PDF's with Safari lacks any kind of features like in-document searching. In addition, iBooks lacks some essential features too.