don't include first page for automatic crop of pages based on a few pages, as the first one may not be representative
don't include first page for automatic crop of pages based on a few pages, as the first one may not be representative

JackieXie168/skim,JackieXie168/skim,JackieXie168/skim,JackieXie168/skim,JackieXie168/skim