Great and free!
I downloaded this program since iBooks isnt loading my PDFs - this program is only for PDF and doesnt allow multitasking (the full version doesnt either). The section of the program that reads out audio works well - the voice that comes with the programs reader isnt very good, but you can use SpeakSelection and highlight sections or the entire page to be read out instead and that works much better (this is the only PDF program Ive used so far that makes it easy to select and have an entire PDF page read out to you since iBooks isnt loading them). I later got the paid version for $1 though as the free version does have trouble saving bookmarks (which can be a hassle with long books), also the paid version reads more smoothly and allows you to adjust text. If the free version didnt have the issues it does saving bookmarks Id give it 4 stars, but that issue is predominantly what makes it worthwhile to get the paid version.
Xyia about
PerfectReader Classic - Beautiful PDF Reader with Unique Text Reflow, Sepia/Night/Daytime reading modes, plus High-quality Text To Speech (Free version), v1.1.0