I receive a lot of white papers and product documentation in PDF files, and the iPad is a logical device for reading that documentation. When I am reading a white paper I like to highlight excerpts and make notes on the pages, which is not possible in GoodReader or Dropbox. For making annotations on PDF files I am using Noterize, which you can also use to write notes in either digital ink or in text with the keyboard.
The first step is to import the PDF file into Noterize, which you can transfer to an iPad via iTunes, or open from the cloud services Box.net or Dropbox. You open a file in a viewing mode, and double-tapping switches to editing mode, which displays several editing tools. You can create a text box anywhere on the page and type a note, or write using your finger or a stylus. Text can be highlighted in one of several different colors, and you can control the width of digital ink and highlight by moving a slider.
Annotating a PDF in Noterize.
Of course you can just create new notes within Noterize by creating a new page and either typing or writing the information on the screen. You can create text boxes anywhere on the screen to place typed text around drawings or digital ink, which can be in multiple colors. Noterize also supports audio notes that are associated with the current page.
New notes that you create can be shared as PDFs, either as e-mail attachments or by saving them to cloud services or social networks. Curiously, there are many more options for sharing documents from Noterize than there are importing documents. When you share a document to Facebook or Twitter, Noterize uploads a copy of the document to noterize.com, and creates a link to the document that is provided in the update to the social network. The link remains active for two weeks, and looks like this in Twitter:
Noterize costs $2.99, and based on my experience, I think it is very worthwhile app for that price. You will find Noterize in the iPad App store.