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It appears that with tagged PDF the location of an annotation, stored in the Annotation dictionary as 'Rect', can be overridden in the logical structure. As I understand the section quoted below, the annotation's location on the page would be changed. Does this apply just to its appearance or also the 'hotspot'? Am I not understanding this correctly? Why would anyone want to use logical structure to override appearance and possibly behavior of the PDF?
From the PDF Reference, version 1.5, section 10.7.4 (Document Interchange / Tagged PDF / Standard Structure Types / Inline-Level Structure Elements / Annotation Elements), page 780:
If an Annot element has no children other than object references, its rendering is
defined by the appearance of the referenced annotations, and its text content is
treated as if it were a Span element. It may have an optional BBox attribute; if supplied,
this attribute overrides the rectangle specified by the annotation dictionary’s
Rect entry.
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D. Alan Stewart Senior Software Developer Layton Graphics, Inc. 155 Woolco Drive Marietta, GA 30065 Voice: 770/973-4312 Fax: 800/367-8192 http://www.layton-graphics.com
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