1. A computer-implemented method, comprising: outputting, for display, a plurality of active document representations in a carousel display, wherein each of the plurality of representations displays a document viewport portion of content from a corresponding active document; and upon receiving an indication of a user gesture, outputting, for display, each document viewport portion in the carousel display with a width-to-height aspect ratio that substantially matches an aspect ratio of a full view display of the active document and outputting, for display, a portion of the active document content outside the document viewport portion.