On 09/04/2009 10:46 AM, Felipe G. Nievinski wrote:
> Hi. I have a document containing a hyperlink. I export it with the option
> PDF/A-1a enabled. When I open the resulting PDF in Adobe and rover the mouse
> cursor over the hyperlink, it shows a floating tag saying "URI: http://...";, 
> but
> clicking on it does not open the hyperlink. Now, if I export the PDF from OO
> with the option PDF/A _disabled_ (and option Tagged PDF enabled), I am able to
> click and open hyperlinks in Adobe. 
> 
> I'm trying to narrow down the problem. Can you please confirm whether PDF/A
> allows hyperlinks? Can you reproduce the problem, please? Also, I noticed that
> KPDF viewer is able to open the hyperlinks that Adobe can't (i.e., PDFs 
> exported
> in PDF/A mode), suggesting that Adobe Read is the problem, not OO nor PDF/A. 
> I'm
> wondering if this is a compatibility issue, though; could the PDF/A
> specification leave some latitude in the way hyperlinks are implemented?
> 
> I'm using OO 3.1.0 and Adobe Reader 9 on Red Hat Linux.
> 
> Thanks,
> Felipe.

http://en.wikipedia.org/wiki/PDF/A
<quote>
Description

The Standard does not define an archiving strategy or the goals of an
archiving system. It identifies a "profile" for electronic documents
that ensures the documents can be reproduced the exact same way in years
to come. A key element to this reproducibility is the requirement for
PDF/A documents to be 100 % self-contained. All of the information
necessary for displaying the document in the same manner every time is
embedded in the file. This includes, but is not limited to, all content
(text, raster images and vector graphics), fonts, and color information.
A PDF/A document is not permitted to be reliant on information from
external sources (e.g. font programs and hyperlinks).

Other key elements to PDF/A compatibility include:

    * Audio and video content are forbidden.
    * JavaScript and executable file launches are prohibited.
    * All fonts must be embedded and also must be legally embeddable for
unlimited, universal rendering. This also applies to the so-called
PostScript standard fonts such as Times or Helvetica.
    * Colorspaces specified in a device-independent manner.
    * Encryption is disallowed.
    * Use of standards-based metadata is mandated.
</quote>




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