Generate multiple PDFs using FOP

Question

Hello,
please take a look to the following code snipplet it is intended for the generation of a PDF document. The PDF-content is written to an OutputStream which works quite well.
The problem is that I want to append some more PDF content to the OutpuStream, but these seams to be impossible. Is there anybody who merged several PDF-Streams to one "big OutputStream" ?
try
driver.setOutputStream(pdf);
//Setup XSLT
TransformerFactory factory = TransformerFactory.newInstance();
Transformer transformer = factory.newTransformer(new StreamSource(xslt));
//Setup input for XSLT transformation
Source src = new StreamSource(xml);
//Resulting SAX events (the generated FO) must be piped through to FOP
Result res = new SAXResult(driver.getContentHandler());
//Start XSLT transformation and FOP processing
transformer.transform(src, res);
System.out.println("first transformation...");
finally
pdf.close();
}

Answer 1

Hang on, your thread title suggests you want to generate multiple PDF documents from a single xml source, but the text is talking about combining pdf content.
I'm not sure which one you really want so I'll the first one.
I've recently had to generate multiple pdf documents from a single xml source. I used the following (hoping the tags render okay):
               <xsl:result-document href="{$filename}" format="html">
                    <!-- document root here -->
                    <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
                         <xsl:call-template name="masterSet"/>
                         <!-- Apply the ID template to this instance of the ID element -->
                         <xsl:apply-templates select="."/>
                    </fo:root>
               </xsl:result-document>I used the Saxon engine to split the xml into multiple .fo documents and then ran FOP over each of these.
The 'xsl:result-document href="{$filename}" format="html"' element does the splitting. Obviously, the filename variable defines the path to the outpute file. You'll no doubt define that within some kind of for-each loop.