Stuff I use every day: column reflow, djvu/chm/mobi support, cropping and zoom on text size even in scanned images. Supposedly lots of other features as well ,

Stuff I use every day: column reflow, djvu/chm/mobi support, cropping and zoom on text size even in scanned images. Supposedly lots of other features as well , but simply supporting djvu is so huge for me, I can't imagine bothering with nickel.