title_body: What devices support reading scanned PDF documents well?
upvoted_answer: I read scanned PDFs on my Android tablet pretty regularly and without problems. 
  
  I presently use a Lenvo Yoga 10 HD+ (previously I had an Acer Iconia A200), but any reasonable spec tablet should do you. I usually use ezPDF reader, but there's a lot of PDF readers out there that work fine (ezPDF was the first that I found that performed well for most things I look at). 
  
  If you're trying to quick-flip pages one after the other, it'll take a second or three to go to the next one. If you actually read each page, though, you won't see that, because it renders the next page in the background.
  
  Things to look for:
  
  
  Quick page flip (or at least page flip you won't notice)
  Controls that make sense to you
  Pan and Zoom controls appropriate to the platform
  If you close the PDF and re-open it later, does it come back to the same place? I know a couple of readers I tried DIDN'T do that.
  Reasonable screen size - the 10" display on my tablet is fine for 8 1/2x11 pages, as long as the type isn't minuscule.
  Make sure the device takes an SD card - you'll want lots of space to store PDFs.
  
  
  I find it's nice to side-load stuff to the SD card, and read from there.