Methods for optimizing a scale and position of a document in response to a user input is provided are provided. In one aspect, a method includes receiving an initial input request to scroll a document to a target position of the document, and identifying at least one relevant portion of content at or near the target position of the document. The method also includes adjusting a position and scale of the document while receiving the initial input request to an optimal position and an optimal scale for viewing the at least one relevant portion. Systems and machine-readable media are also provided.