Free PDF reader apps: Dropbox

Parent blog entry: http://kenamored.blogspot.com/2011/03/free-pdf-reader-apps.html

PROS:

• Its built-in PDF reader has the capability, like Safari, to tap twice to either zoom in or zoom out on a column of text, a "natural" part of functionality for an iPod.

CONS:

• This security concern, raised in 4/2011.

OBSERVATIONS:

• On an iOS device, mark a document as a favorite to access it offline from that device: https://www.dropbox.com/help/77. 2 GB of such files can be synced.