Reading PDFs using Apps
For students, researchers and others that need to work with PDFs in a more active fashion or in greater quantity, using a PDF reader app is likely a better option than using the iPad's built in PDF support. The apps discussed in this section can be used to read PDF files, manage a library of PDF files or annotate the files depending on the user's needs. Fortunately, there are a number of PDF readers available through the iTunes Store, both paid and free, that can better manage PDF files.
This paid app ($2.99) has the ability to open PDFs, Microsoft Word files, TXT files and an assortment of other file types. The app comes with a built in library function so you can sort your PDF files into different folders (e.g. "English Class," "History Class" and "Tax Forms") to suit your needs. Good Reader also has the ability to highlight text, make marginal notes and other advanced functions.
Stanza is a free app that is dedicated to reading text files, including PDF readers. While it does not have the same annotation and editing abilities of Good Reader, Stanza does have a library tool that can be used to manage PDF files. Copying files with Stanza is easily done - simply open a PDF file in the Email app or Safari and you will be prompted to save the file into Stanza.
This paid app ($9.99) is the best app for users who love to make notes, mark up documents and read documents deeply. If you learn best through note taking this app may be the best one for your needs. Annotations can be saved into the PDF file and shared with others - a helpful feature for those that need to share complex PDF files with friends or co-workers.