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Re: PDF Tag Nesting Question

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From: Olaf Drümmer
Date: Jul 24, 2013 10:29AM

Hi all,

these two variants are booth valid PDF syntax:

Non-nested example = weakly structured document:
<H1>
<P>
<H2>
<P>
<P>
<L>
<H3>
<P>
<H2>
<P>

Nested example = strongly structured document (note the use of H instead of H1...H6):
<H>
<P>
<H>
<P>
<P>
<L>
<H>
<P>
<H>
<P>


For practical reason - mostly lack of adoption by creation tools and by assistive technology - the weakly structured, non-nested approach is recommended.

Olaf