Originally Posted by RastyG
I gave "Shift+X" for odd/even pages a try and I have to say it's far better than manully pressing "Shift+S". The most important feature of this solution is that cropped areas are remembered and I do not have to cropp the pages when entering a book again.
It seems like you are talking about pdf without text layer (non OCR-ed pdf) only.
That's what two-point-cropping "Shift+X" is meant for.
But if there is text layer underneath pdf image (OCR-ed pdf) "Shift+S" is better solution IMHO.
I will almost always do a quick ocr-ing of any non-ocred pdf beforehand anyway, because in this way not only can i use "Shift+S" for cropping(automatically zooming-in without margins) but will also be able to do the highlighting and search in pdf.
Quick ocr-ing in Adobe Acrobat or Abbyy Finereader (as exact image/copy) takes just about 20-30 minutes for an average book and for me there is usually no reason to do detailed ocr-ing on exact pdf image that will double the ocr-ing time.