made paging thru large books easy
Used the pre-render function, then it just made viewing large PDF documents so much faster. Who has time to wait for some app to show the page, I noticed it cleared all the lag time up in viewing my automobile user manual since that seem to take 10 seconds to draw the shaded dashboard in that other PDF Reader app I was using.
For sure these guys think different and have a better way to show PDF pages.
MathMajorToo about
The Fastest PDF Reader