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From Leopard2A5 <persc...@itso-berlin.de>
Subject HowTo export several pages to PNG-format
Date Tue, 31 Mar 2009 08:16:08 GMT

Hello!

I've searched the mailing lists and the docs but i somehow couldn't find
help.
I'm using fop to generate PDFs in my web-application, but i also need
preview-pictures to display via HTML.
Generating PDFs via FOP works great, but i can't manage to get more than the
first page as a preview.

Here's my code:

private int getImagesFromPDF(String path, Reader stylesheet) throws
Exception
    {
        FileOutputStream output = new FileOutputStream(path + ".png");
        
        //Instantiate FOP
        FopFactory fopFactory = FopFactory.newInstance();
        fopFactory.setSourceResolution(96);
        fopFactory.setBaseURL(VISITE_BASE_PATH);
        try
        {
            fopFactory.setUserConfig(VISITE_BASE_PATH + "fop_config2.xml");
        } 
        catch (SAXException e)
        {
            e.printStackTrace();
        }
        
        Fop fop = fopFactory.newFop(MimeConstants.MIME_PNG, output);
            
        TransformerFactory factory = TransformerFactory.newInstance();
        Transformer transformer = factory.newTransformer();

        // get the right input format for conversion
        Source style = new StreamSource(stylesheet);
        Result res = new SAXResult(fop.getDefaultHandler());

        // Step 6: Start XSLT transformation and FOP processing
        transformer.transform(style, res);

        return 0;
    }

and my fop_config-file:

<fop version="1.0">
  <renderers>
   <renderer mime="image/png">
      <fonts>
        <!-- register a particular font -->
        
          <font-triplet name="Georgia" style="normal" weight="normal"/>
        
        
          <font-triplet name="Georgia" style="normal" weight="bold"/>
        
        
          <font-triplet name="Georgia" style="italic" weight="normal"/>
        
        
          <font-triplet name="Georgia" style="italic" weight="bold"/>
        
      </fonts>
   </renderer>
</renderers>

</fop>

Any help would be appreciated!
Thx in advance!
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