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Posted to fop-users@xmlgraphics.apache.org by "ngo.thanh.hien" <ng...@vietsoftware.com> on 2004/05/11 11:03:53 UTC

Fit data into a PDF page

Dear FOP experts
    I used FOP to transform report data from XSL-FO to PDF. 
My purpose is have a report that fit into a PDF page (A4) but the report data 
couldn't fit into a page if have more data. Could you have any solution for 
this fitting in any scope of report data? Will I modify XSL-FO or this 
fitting is role of display PDF software (Adobe Reader for example)?

Thanks & best regards



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CSS to XSL FO?

Posted by "Robert C. Leif" <rl...@rleif.com>.
Is there any tool to convert a cascading style sheet (CSS) to XSL FO?
Thank you.
Bob Leif


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RE: Fit data into a PDF page

Posted by Chris Pratt <ch...@planetpratt.com>.
One way that FOP could help in situations like this, without hacking or
extending the XSL-FO Spec, might be to allow registration of event callback
handlers for specific events with the Driver.  The idea, at least in this
case, would be to register a PaginationHandler that would be called whenever
FOP determined that a new page was necessary.  In this users case he could
abort the current Formatting process, decrement some point size parameter
and try again until he got a document without an intervening
PaginationHandler event.  This type of event based processing could probably
be useful in many other contexts, but seems well suited for this one.
  (*Chris*)

-----Original Message-----
From: Clay Leeds [mailto:cleeds@medata.com] 
Sent: Tuesday, May 11, 2004 7:55 am
To: fop-user@xml.apache.org
Subject: Re: Fit data into a PDF page

Chris Bowditch wrote:
> I think what you are asking for is something like scale-to-fit? There is 
> no such feature in XSL-FO I'm afraid. The only way to achieve this 
> effect would be to change your font size/spacing depending on how much 
> data is in the report. Exactly how to do this will depend on the details 
> of your reports. Some experimentation will be required, and I should 
> warn you that such a solution will not be particularly robust, i.e. 
> report will be unreadable if you try to squeeze 6 pages worth into 1 page.
> 
> Chris

To echo what Chris says, the solution you will find will probably not be 
very desirable. You could also (perhaps) try post-processing with iText, 
although I'm not certain how it would work.

I was going to suggest one other possibility: calculate dynamically 
sized region-before/region-body/region-after margins & extents. This 
would enable you to make the 'HEADER' and/or 'FOOTER' portions 
'shrink-to-fit' depending upon the amount of content.

However, if you're only creating one page, you're probably only using 
region-body anyway...

Good luck! And please let us know what you come up with so it's in the 
archives!

Web Maestro Clay
FOP Committer (got confirmation yesterday! :-D)

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Re: Fit data into a PDF page

Posted by Clay Leeds <cl...@medata.com>.
Chris Bowditch wrote:
> I think what you are asking for is something like scale-to-fit? There is 
> no such feature in XSL-FO I'm afraid. The only way to achieve this 
> effect would be to change your font size/spacing depending on how much 
> data is in the report. Exactly how to do this will depend on the details 
> of your reports. Some experimentation will be required, and I should 
> warn you that such a solution will not be particularly robust, i.e. 
> report will be unreadable if you try to squeeze 6 pages worth into 1 page.
> 
> Chris

To echo what Chris says, the solution you will find will probably not be 
very desirable. You could also (perhaps) try post-processing with iText, 
although I'm not certain how it would work.

I was going to suggest one other possibility: calculate dynamically 
sized region-before/region-body/region-after margins & extents. This 
would enable you to make the 'HEADER' and/or 'FOOTER' portions 
'shrink-to-fit' depending upon the amount of content.

However, if you're only creating one page, you're probably only using 
region-body anyway...

Good luck! And please let us know what you come up with so it's in the 
archives!

Web Maestro Clay
FOP Committer (got confirmation yesterday! :-D)

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Re: Fit data into a PDF page

Posted by Chris Bowditch <bo...@hotmail.com>.
ngo.thanh.hien wrote:

> Dear FOP experts
>     I used FOP to transform report data from XSL-FO to PDF. 
> My purpose is have a report that fit into a PDF page (A4) but the report data 
> couldn't fit into a page if have more data. Could you have any solution for 
> this fitting in any scope of report data? Will I modify XSL-FO or this 
> fitting is role of display PDF software (Adobe Reader for example)?

I think what you are asking for is something like scale-to-fit? There is no 
such feature in XSL-FO I'm afraid. The only way to achieve this effect would 
be to change your font size/spacing depending on how much data is in the 
report. Exactly how to do this will depend on the details of your reports. 
Some experimentation will be required, and I should warn you that such a 
solution will not be particularly robust, i.e. report will be unreadable if 
you try to squeeze 6 pages worth into 1 page.

Chris



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