Aaah. Reads my mind.
Trying to read some large PDFs on my new iPad Pro 12. Discover that despite requests since 2012 Apple iBooks still cant do two pages side by side... Sigh. Bought GoodReader.
Yay, got my two pages - relief. But wait, the docs have huge margins... would be so much easier to read if it could automatically trim those. Just before sending devs a feature request I notice the crop icon.. Looks promising... AWESOME. Thats just awesome. Yay. You got a fan.
ThingTwo says meh about
GoodReader PDF Editor & Viewer