I frequently want to read academic papers while on the go. They're usually in PDF format, so I sync them to my iPhone with iBooks.
The problem is that most of the papers I want to read are in a two-column format that's extremely difficult to read on the phone's screen - I have to zoom in on a column, scroll down, then scroll up to the top of the next column and repeat.
Is there any software that will "flatten" out the PDF? I love Instapaper for web-based information; something that could turn a two-column PDF into a long stream of text and images would be great.