Amazon Technologies, Inc.

Christopher Allan White

Fei C Wang

Joseph Alexander Zuromski

Hao Hu

Palanidaran Chidambaram

Surendran Rangasamy

Content providers may specify special formatting instructions to manage formatting of content that is ultimately displayed by electronic devices. The formatting instructions may include formatting that is not apparent from an original format of the content. The formatting instructions from a content provider may override default formatting that is used by a viewing application on the electronic device or a host (intermediary) that formats the content for the electronic device, which would otherwise control a format of the content. The formatting instructions may be based on attributes of the electronic devices, such as display size, display type, etc. By enabling content providers to specify these special formatting instructions, the content providers may retain control of an ultimate look and function of the content when the content is formatted for a particular electronic device.

Publisher formatting controls

A method and apparatus for paginating documents such as html documents is disclosed. A document viewing engine generates a preliminary layout for the, the preliminary layout having a layout width that is equivalent to a viewport width of a viewport on which the document will be displayed. The document viewing engine computes a final layout for the document based on determining a plurality of horizontal pixel lines where page breaks can be placed without cutting off any element in the document and assigns page breaks to one or more of the plurality of horizontal pixel lines based on a height of the viewport. The document viewing engine identifies, for a current page, one or more visual elements that will not be fully within the viewport if painted. The document viewing engine paints the current page without painting the identified one or more visual elements. After changing from the current page to a new page, the document viewing engine paints the contents of the new page without re-computing the final layout of the document.

Method and apparatus for paginating electronic documents

Content may be stored as structured language data that may be separated into a formatting skeleton (skeleton) and fragments. The skeleton may be extracted from the structured language data to retain at least a portion of the formatting information of a structured language data. The fragments may be segments of presentation data from the structured language data and may be mapped to a location within the skeleton. Upon rendering, a client device may only have to load the skeleton and one or more fragments associated with a specified viewing location in order to quickly and accurately render a portion of the content. By rendering only some of the fragments of the structured language data, the client device may minimize user-perceived latency during processing and rendering operations.

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Redwood City, CA, United States of America

Christopher Allan White