A Java program that uses jPDFPrint to convert a PDF file to Postscript. The program queries the JVM for any print services that support Postscript output. At least one such services is always available in a Sun JVM. It then prints the PDF document, using jPDFPrint, to that print service, which will ouptut a Postcript file.
ocFlavor flavor = DocFlavor.SERVICE_FORMATTED.PRINTABLE; String psMimeType = DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType(); StreamPrintServiceFactory[] factories = StreamPrintServiceFactory.lookupStreamPrintServiceFactories(flavor, psMimeType); System.out.println ("Available PS services: " + factories.length); if(factories.length == 0) { System.err.println ("No PS factories available!"); System.exit(0); } // Open the PDF file PDFPrint pdfPrint = new PDFPrint ("test.pdf", null); // Open the output file FileOutputStream fos = new FileOutputStream("output.ps"); // Use the first service available StreamPrintService sps = factories[0].getPrintService(fos); DocPrintJob pj = sps.createPrintJob(); // Define paper size PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet(); aset.add(MediaSizeName.NA_LETTER); // Create simple doc using PDFPrint as Printable and print it SimpleDoc doc = new SimpleDoc(pdfPrint, flavor, null); pj.print(doc, aset); // Close the output PS stream fos.close(); |
