- From: David Woolley <david@djwhome.demon.co.uk>
- Date: Fri, 19 Nov 2004 08:24:23 +0000 (GMT)
- To: www-svg@w3.org
> It's a semantic rendering language, the semantics are in the rendering, if At that level, you can call almost anything semantic and "semantic" loses its meaning. Other responders understood what I meant. > User Style sheets are only an appropriate way to meet accessibility > requirements if the content isn't presentational, which SVG is, users cannot > style things with presentational semantics, it's simply impossible. Most commercial HTML authors strive to use it as a purely presentational language, but the PDF developers appear to have interpreted the legislative environment as requiring the addition of a document semantics layer (essentially an HTML overlay) to their essentially** presentational PDF language. They even have tools that automatically extract that information from MS Office originals. For those who've never looked at tagged PDF, it applies the HTML overlay by inserting semantic elements into the main structure, where there is no structure class with the presentational elements, and maintaining a parallel, docment semantics tree to fill in the gaps where there are structure clashes. ** PDF guidelines have always required text to in a form that is easy to extract, but the common route to PDF via Word ignored those guidelines.
Received on Friday, 19 November 2004 08:24:26 UTC