Expression of scientific document object in tagged PDF
Junqing Yu · Jisuanji gongcheng yu sheji · 2007
Tagged PDF files,which have a mechanism combining contents and logical structures through inherent tags,are optimized for accessibility.However,default tags provided emphasize on describing basic logical structures such as paragraphs,sections,tables and so on.Meanwhile,scientific objects with complex structures are frequently used.Based on the extensibility of PDF document structure,these objects' structural expressions is expressed in tagged PDF.And the implementation using plug-in programming interface is also introduced.