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Posted to dev@forrest.apache.org by Keiron Liddle <ke...@aftexsw.com> on 2002/12/19 08:05:54 UTC
PDF transforms (was: Re: File prefix again)
On Wed, 2002-12-18 at 15:23, Nicola Ken Barozzi wrote:
> > I don't get this. How can PDFs be transformed?
>
> There are Java libraries that read PDFs. What would be really cool is to
> have a reader or something like it that uses a PDF as a template.
> Using FOP for just filling out forms is overkill, we just need templating.
>
> This is a general use case of PDF transformation, and another that I
> would really like to see is to generate a "non-controlled copy" stamp on
> the PDF for the management of ISO9001 documentation.
>
> Or simply by adding a copyright statement.
Sounds like some good ideas.
It would be possible to do some work with Fop so that it can:
- convert xsl:fo to paged xml
- convert paged xml to pdf (or other formats)
- define templates with the paged xml
- append paged xml to a current document
So it would be possible to create the paged xml from fo. Then to do a
transform or directly convert or append the paged xml to pdf.
Also the extensions and foreign xml can be passed through directly so
that both formats support the same extensions, such as svg.
So the changes that would need to be made are:
- improve and update xml renderer so that it can output SAX
- improve and update AreaTreeBuilder so that it takes SAX input
- make some additions to the pdf lib so it can load and read pdf
documents
Then it shouldn't be so hard to add in extensions for pdf forms etc.
Re: PDF transforms (was: Re: File prefix again)
Posted by Jeremias Maerki <de...@greenmail.ch>.
Hi Keiron
On 20.12.2002 09:41:52 Keiron Liddle wrote:
> On Thu, 2002-12-19 at 21:15, Jeremias Maerki wrote:
> > All cool, but how exactly is that better than having a PDF template that
> > is stitched behind or in front of the FOP result using iText or PJ?
> > Works well. Ok, PDF reading with our own library is a bonus as is better
> > XML output for debugging. But I don't see any immediate need for this at
> > the moment given our limited resources. Or do I miss anything?
>
> Well I'm not really suggesting is is high priority, just an idea.
> One things is that the XML and the additions can work both in and out of
> Fop.
>
> At least outputing SAX in the XMLRenderer would probably be an
> improvement.
Ok then. Will you put this on the todo list?
Jeremias Maerki
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Re: PDF transforms (was: Re: File prefix again)
Posted by Keiron Liddle <ke...@aftexsw.com>.
On Thu, 2002-12-19 at 21:15, Jeremias Maerki wrote:
> All cool, but how exactly is that better than having a PDF template that
> is stitched behind or in front of the FOP result using iText or PJ?
> Works well. Ok, PDF reading with our own library is a bonus as is better
> XML output for debugging. But I don't see any immediate need for this at
> the moment given our limited resources. Or do I miss anything?
Well I'm not really suggesting is is high priority, just an idea.
One things is that the XML and the additions can work both in and out of
Fop.
At least outputing SAX in the XMLRenderer would probably be an
improvement.
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Re: PDF transforms (was: Re: File prefix again)
Posted by Jeremias Maerki <de...@greenmail.ch>.
All cool, but how exactly is that better than having a PDF template that
is stitched behind or in front of the FOP result using iText or PJ?
Works well. Ok, PDF reading with our own library is a bonus as is better
XML output for debugging. But I don't see any immediate need for this at
the moment given our limited resources. Or do I miss anything?
On 19.12.2002 08:05:54 Keiron Liddle wrote:
> On Wed, 2002-12-18 at 15:23, Nicola Ken Barozzi wrote:
> > > I don't get this. How can PDFs be transformed?
> >
> > There are Java libraries that read PDFs. What would be really cool is to
> > have a reader or something like it that uses a PDF as a template.
> > Using FOP for just filling out forms is overkill, we just need templating.
> >
> > This is a general use case of PDF transformation, and another that I
> > would really like to see is to generate a "non-controlled copy" stamp on
> > the PDF for the management of ISO9001 documentation.
> >
> > Or simply by adding a copyright statement.
>
> Sounds like some good ideas.
>
> It would be possible to do some work with Fop so that it can:
> - convert xsl:fo to paged xml
> - convert paged xml to pdf (or other formats)
> - define templates with the paged xml
> - append paged xml to a current document
>
> So it would be possible to create the paged xml from fo. Then to do a
> transform or directly convert or append the paged xml to pdf.
> Also the extensions and foreign xml can be passed through directly so
> that both formats support the same extensions, such as svg.
>
> So the changes that would need to be made are:
> - improve and update xml renderer so that it can output SAX
> - improve and update AreaTreeBuilder so that it takes SAX input
> - make some additions to the pdf lib so it can load and read pdf
> documents
>
> Then it shouldn't be so hard to add in extensions for pdf forms etc.
Jeremias Maerki
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AW: PDF transforms (was: Re: File prefix again)
Posted by "J.U. Anderegg" <ha...@bluewin.ch>.
Hi Keiron,
> On Sun, 2002-12-22 at 02:18, Kevin O'Neill wrote:
> > Is the paged XML a new or existing format?
>
> A new format for now at least.
>
> It is possible there will be a w3c defined format.
Please give some pointer to w3c activities in this area. What is this thing
exactly supposed to do? What have externals to look like? etc...
Hansuli Anderegg
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Re: PDF transforms (was: Re: File prefix again)
Posted by Keiron Liddle <ke...@aftexsw.com>.
On Sun, 2002-12-22 at 02:18, Kevin O'Neill wrote:
> > It would be possible to do some work with Fop so that it can:
> > - convert xsl:fo to paged xml
>
> Is the paged XML a new or existing format?
A new format for now at least.
It is possible there will be a w3c defined format.
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Re: PDF transforms (was: Re: File prefix again)
Posted by Kevin O'Neill <ke...@rocketred.com.au>.
On Thu, 2002-12-19 at 18:05, Keiron Liddle wrote:
> On Wed, 2002-12-18 at 15:23, Nicola Ken Barozzi wrote:
> > > I don't get this. How can PDFs be transformed?
> >
> > There are Java libraries that read PDFs. What would be really cool is to
> > have a reader or something like it that uses a PDF as a template.
> > Using FOP for just filling out forms is overkill, we just need templating.
> >
> > This is a general use case of PDF transformation, and another that I
> > would really like to see is to generate a "non-controlled copy" stamp on
> > the PDF for the management of ISO9001 documentation.
> >
> > Or simply by adding a copyright statement.
>
> Sounds like some good ideas.
>
> It would be possible to do some work with Fop so that it can:
> - convert xsl:fo to paged xml
Is the paged XML a new or existing format?
> - convert paged xml to pdf (or other formats)
> - define templates with the paged xml
> - append paged xml to a current document
>
> So it would be possible to create the paged xml from fo. Then to do a
> transform or directly convert or append the paged xml to pdf.
> Also the extensions and foreign xml can be passed through directly so
> that both formats support the same extensions, such as svg.
>
> So the changes that would need to be made are:
> - improve and update xml renderer so that it can output SAX
> - improve and update AreaTreeBuilder so that it takes SAX input
> - make some additions to the pdf lib so it can load and read pdf
> documents
>
> Then it shouldn't be so hard to add in extensions for pdf forms etc.
>
>
>
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> To unsubscribe, e-mail: fop-dev-unsubscribe@xml.apache.org
> For additional commands, email: fop-dev-help@xml.apache.org
--
If you don't test then your code is only a collection of bugs which
apparently behave like a working program.
Website: http://www.rocketred.com.au/blogs/kevin/
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