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Re: RE: Bare-bones proposal for 1.3, "Ensure that information, functionality, and structure are separable from presentation" (re-send)

From: <lguarino@adobe.com>
Date: Fri, 13 May 2005 18:13:51 -0700
To: WAI-GL <w3c-wai-gl@w3.org>
Message-id: <1d16621ce1cc.1ce1cc1d1662@adobe.com>

> But tagged PDF "adds structure" in a different way than, say HTML or 
XML
> markup "add structure." I was told just yesterday, in fact, that the 
PDF
> tags remain entirely separate from the document-- to such an extent, 
in
> fact, that edits to the document are not reflected in the tags.  (For
> example, a block of 5 or more pages was deleted from somewhere in the
> document; the corresponding tags were not deleted, however, so had 
> to be removed manually.

This is approximately correct. Within the PDF file, the Tags are a 
separate data structure from the content stream that is rendering the 
page, with connections made from the leaves of the tree to marked 
content within the print stream. So it is possible to delete the 
marked content and still leave the elements of the Tags tree that 
pointed to that content in the Tags data structure.

Loretta
Received on Saturday, 14 May 2005 01:42:30 UTC

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