1. A method comprising: receiving an indication of a target location in a sequence of page images; determining a location of a page image in the sequence of page images representing a point at which the user intended to stop in the sequence of page images but for display speed of the sequence of images and user reaction time in providing an indication of the point at which the user intended to stop; and automatically jumping to the page image at the location in the sequence of page images while displaying multiple intervening page images as the location is being approached; wherein one or more of the multiple intervening page images are merged images that are created by: identifying salient content on pages of the image-based document; creating a first set of merged pages having salient content from a first number of page images of the image-based document merged into one image; creating a second set of merged pages having salient content from a second number of page images of the image-based document merged into one image, the second number being twice the first number; creating a third set of merged pages having salient content from a third number of page images of the image-based document merged into one image, the third number being twice the second number; and designating the merged images to display as part of the multiple intervening page images by selecting one of the first, second or third sets based on a speed control input.