Text in a PDF won't reflow on the iLiad, just as it won't in Adobe Reader on a computer screen. But you can zoom in to get rid of wide margins, or look at part of the page at a time and move it round with the stylus, or turn it through 90 degrees and look at half a page at a time. And the display is much sharper than an average computer, so if you've got good eyes, a full-page A4 PDF will still be readable. I'm very happy with mine, and being able to use it as a notepad too is a lot more useful than I was expecting!
