Missing
+ Specify aspect ratio of crop regions
+ Clone regions (and keep them linked)
+ Make it possible to save and later reuse regions.
+ <del>Support PyPDF2 besides pyPDF</del>
+ Preserve meta data, table of contents and bookmarks when cropping
+ Allow translations
+ <del>Is there a clean solution to shut down on CTRL+c? (see [[http://stackoverflow.com/questions/4938723/]])</del>
+ Shortcuts

Ideas
+ Option to overlay pages in order to improve making selections
+ Better support for handling a large number of files
+ Automatize splitting pages in common ways (for instance, one page into two equally sized pages).
