Converting PDF to PostScript using Java JAR or open-source

Hi All, I have a question of how to convert PDF file into PostScript file in a Java-based environment as I was doing a java project, and I need the thing to be in Java. It could be a JAR format or a Class format, either one is okay. I have searched google and found out a XPDF. I want something like it, except that XPDF convert PDF to PS using C++ library, and what I need is in Java.
sentosa_ganiAsked:
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girionisCommented:
 Not sure if you can do it directly, you probably need to read in the PDF, convert it into XML and then reconvert it back to PS.

  Take a look here for some libraries to read/write PDF documents (some require a commercial licence): http://www.geocities.com/marcoschmidt.geo/java-libraries-pdf.html

  and here you can find some products that convert XML to PS (some are commercials):

http://www.icewalkers.com/Linux/Software/519060/RenderX-XEP.html
http://www.rtf2fo.com/index.html
http://xep.xattic.com/

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sentosa_ganiAuthor Commented:
Hmmm.....
that's a suggestion. Anyway I still need a Java-based for those idea (in the sense that, it is open source or in jar format/class) . I'll check it first, and if I found it, I will reward the point =)
girionisCommented:
 Not sure if you can find one. If you are willing to sacrifice portability for functionallity you can always use the Runtime.getRuntime().exec() to do it.
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sentosa_ganiAuthor Commented:
o yea... u suggest to convert a pdf into XML, but where to find that one? =S
girionisCommented:
 The link I posted (http://www.geocities.com/marcoschmidt.geo/java-libraries-pdf.html) should point you to the right place.
cavalmiCommented:
I wrote to the xpdf people and asked them about a java port.  They said that they only had a few requests for it.  Maybe if more people wrote to them they might provide a java port.
sentosa_ganiAuthor Commented:
okay... I will ask xpdf people about the portability in Java too....
sentosa_ganiAuthor Commented:
To girionis, I still can't find the link to convert PDF to XML. THe link that you gave me is for reading PDF mostly
sentosa_ganiAuthor Commented:
To girionis, I still can't find the link to convert PDF to XML. THe link that you gave me is for reading PDF mostly
girionisCommented:
 Yes you will have to define the XML structure yourself.
sentosa_ganiAuthor Commented:
hmm.. in the end i can't find the solution, but thanks for all your help anyway...
girionisCommented:
:)
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