Thanks Jeremias.

Is tagged PDF (PDF/A-1a) on your plan and any possible schedule for
implementation?

Any decent XSL-FO product you can recommend for a first try?

I appreciate it a lot.

-----Original Message-----
From: Jeremias Maerki [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, January 09, 2008 3:43 PM
To: [email protected]
Subject: Re: 508 compliance

On 09.01.2008 21:29:31 Andreas L Delmelle wrote:
> 
> On Jan 9, 2008, at 20:53, Li, Hao wrote:
> 
> > Thanks Andreas.
> >
> > Yes. It is about accessibility. Although the pdf can be generated,
the
> > customer does not like it because of accessibility issues, for  
> > example:
> > missing PDF tags, lacking language specification etc.
> >
> > After searching about tagged pdf, I found
> > http://xmlgraphics.apache.org/fop/trunk/pdfa.html. It seems that
> > PDF/A-1b is implemented, but not PDF/A-1a. Does it mean tagged PDF
is
> > not supported yet?
> 
> Indeed. I know Jeremias recently mentioned tagged PDF as a (rather  
> long term) goal, so there is definitely interest from other parties  
> in adding this functionality as well.

Right, there is some interest but so far it rather seems to be "nice to
have" than "must have". Furthermore, nobody can tell how far we'd have
to go with support for Tagged PDF. You can take a minimal approach or go
all the way. But in any scenario it will have a larger impact on the
area tree and renderers as far as I can judge right now (without having
looked into it too closely).

> > I will be testing it as well. If not, do you happen
> > to know nay java plugin or product that can make accessible FO
> > conversion?
> 
> Maybe you can have a look at post-processors, like iText (http:// 
> www.lowagie.com/iText/) or PDFBox (http://www.pdfbox.org/).
> They can be used in conjunction with FOP in a fairly straightforward  
> manner. Use FOP to generate the basic PDF, and feed the output to the

> post-processor for further enhancements.

Only they won't help with accessibility. As long as FOP cannot pass on
accessibility information from XSL-FO to the PDF there's nothing that
any post-processor can magically add.

I think there are some commercial XSL-FO implementations that support a
certain degree of Tagged PDF but I don't know far they go and if that
would cover the 508 requirements.

> 
> HTH!
> 
> Cheers
> 
> Andreas


Jeremias Maerki


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