| 摘要 |
A computerized system inputs fonted text and outputs corresponding fonted text containing new, automatically created, font descriptions. The new font descriptions make the output a portable document which can be rendered at any magnification by a machine of any output resolution, even if that machine does do not have access to the pre-defined font descriptions associated with the original input text. The system creates the portable document by accessing the pre-defined font descriptions of each character-font shape in the input text and generating new font descriptions which describe those shapes in a new font description language. Preferably the system findspoints on the outlines of each character-font shape which are a function of the shape itself, rather than how its pre-defined description describes that shape. The system bases the segmentation of the new font description on such description-independent points. Once created, the portable document can be rendered on the computer or printer generating it or a computer or printer receiving the document over a network or on mass storage media. In some embodiments, the computer viewing the portable document determines whether can access and render the pre-defined font description of each character in the portable document. If so, it does so. If not, it interprets the shape of the character from its new font description in the portable document.
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