One caveat, while the app is good for non-disabled and dyslexic users, I would not recommend the app for VoiceOver users because of some VoiceOver problems I have found. Readdle, the maker of the app, should work on fixing these VoiceOver problems so blind and visually impaired can also benefit from the app.
PDF files can be imported from numerous cloud storage services including Google Drive, Drop Box and SkyDrive or using the "open-in" feature of many other iOS apps. You can also view other file types, but the built in text-to-speech reader is only available for PDF documents. Files can be organized into folders or dragged and dropped into different sections.
PDF Expert's text-to-speech function works with any PDF with digital text. It does not work with PDF documents that have text within images. To read a compatible PDF, turn on text-to-speech in the reading mode menu and then press play. You can start reading at the middle or end of a page by highlighting a word and pressing "read from here." Text is read with the default iOS voice that many may recognize as the voice of Siri. Unfortunately, you cannot purchase additional higher quality voices. The app also requires you to re-enable text-to-speech every time you switch PDF documents. This is inconvenient if you switch are between PDF documents quickly.
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