PDF has a feature called Tagged PDF, which allows the document to be annotated w... | Hacker News

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jahewson on July 8, 2017 | parent | context | favorite | on: Show HN: Parsing horse racing charts with Apache P...

PDF has a feature called Tagged PDF, which allows the document to be annotated with a semantic structure. Almost nobody bothers to generate such PDFs, but the support is there!

oever on July 9, 2017 [–]

Dutch law requires that official documents be published as PDF/A-1a which is a subset of PDF 1.4 that can be archived and must be tagged.

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