Subject: Re: [xsl] Insert PDF file From: "W. Eliot Kimber" <eliot@xxxxxxxxxx> Date: Tue, 24 Sep 2002 09:38:49 -0500 |
> > Eric.Reiter@xxxxx wrote: > > > I have a XML file with a tag <doc>str.pdf</doc>, in which > > srt.pdf is a file. > > > > > > When i transform this XML into PDF (with FOP), i would that the > > > <doc>str.pdf</doc> would be replaced by the PDF file str.pdf. > > > > > > How can i do that? I think you can do this by converting the PDF into a full-page EPS and including that, but that would definitely require either an outside process or an extension function to do it as part of the XSLT process. I haven't experimented with this, but I'm sure it's possible--worst case you would use Acrobat to print the pages you want back to Postscript and then use some utility to make those pages into EPS files--an EPS file is just normal Postscript with a bit of encapsulation around it so it can be placed in the context of other Postscript data. The EPS syntax is well documented in the Acrobat specs (available from the Adobe site). [For example, it only took me a little while (a couple of hours) to write Java code that can parse out or add a TIFF image header to an EPS file (and most of that was remembering how to do byte-stream I/O in Java :-).] But it's definitely not possible to simply concatenate PDFs together--the internal format of PDFs depends entirely on tables of byte offsets. But, it's not too hard to write code that will combine pages from different PDFs to make a new one, but that would be after the fact. I suppose another solution would be to write out place-holder pages in the main PDF that could be interpreted as references to the included PDF to be included by a post-process. The post process could then replace the placeholder pages with the included pages--the only issue there would be fonts--the included PDFs might require fonts that aren't required by the main PDF, but that's solvable as well. See the PJ library (www.etymon.com) for an open-source Java library that enables this sort of PDF processing. Of course, you can also use the Adobe PDF library if you have a license for it. Cheers, Eliot -- W. Eliot Kimber, eliot@xxxxxxxxxx Consultant, ISOGEN International 1016 La Posada Dr., Suite 240 Austin, TX 78752 Phone: 512.656.4139 XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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