Is there a way to get this "send to printer" Java method to work?

Question

public static void sendPdfToPrinter(String epsilon)
{
    FileInputStream psStream = null;
    try {
        psStream = new FileInputStream(epsilon);
        } catch (FileNotFoundException ffne) {
          ffne.printStackTrace();
        }
        if (psStream == null) {
            return;
        }
    DocFlavor psInFormat = DocFlavor.INPUT_STREAM.AUTOSENSE;
    Doc myDoc = new SimpleDoc(psStream, psInFormat, null);  
    PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
    PrintService[] services = PrintServiceLookup.lookupPrintServices(psInFormat, aset);

    // this step is necessary because I have several printers configured
    PrintService myPrinter = null;
    for (int i = 0; i < services.length; i++)
    {
        String svcName = services[i].toString();          
        System.out.println("service found: "+ svcName); 
        if (svcName.contains("series"))
        {
            myPrinter = services[i];
            System.out.println("my printer found: "+svcName);
            break;
        }
    }

    if (myPrinter != null) {            
        DocPrintJob job = myPrinter.createPrintJob();
        try {
        job.print(myDoc, aset);

        } catch (Exception pe) {pe.printStackTrace();}
    } else {
        System.out.println("no printer services found");
    }
}

public static void main(String[] args) throws IOException
{
    //@SuppressWarnings("unused")
    //Testing t = new Testing();
    String DEST = ("C:/Users/Brian/Desktop/SO046201R-17/TestingAlpha/6FS-2m.pdf");
    sendPdfToPrinter(DEST);
}

I'm currently writing a program that'll write text to a series of PDF files and then send them to a printer. I've got the writing to the PDF part done, but whenever I try passing the file to the "sendPdfToPrinter" method I encounter problems. So far I've tested a HP Deskjet printer and a Canon Inkjet printer with no success (former gave a "Java Document error" message and latter wouldn't add file to the queue). I suppose my question boils down to this:

Is the problem with the code or with the printers I'm using? Is there a workaround?

Using Mark's edit:

public static void sendPdfToPrinter(String epsilon) throws 
InvalidPasswordException, IOException
{
    FileInputStream psStream = null;
    try {
        psStream = new FileInputStream(epsilon);
        } catch (FileNotFoundException ffne) {
          ffne.printStackTrace();
        }
        if (psStream == null) {
            return;
        }
    DocFlavor psInFormat = DocFlavor.INPUT_STREAM.AUTOSENSE;
    PDDocument myDoc = PDDocument.load(new File(epsilon));  
    PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
    PrintService[] services = 
    PrintServiceLookup.lookupPrintServices(psInFormat, aset);

    // this step is necessary because I have several printers configured
    PrintService myPrinter = null;
    for (int i = 0; i < services.length; i++)
    {
        String svcName = services[i].toString();          
        System.out.println("service found: "+ svcName); 
        if (svcName.contains("series"))
        {
            myPrinter = services[i];
            System.out.println("my printer found: "+svcName);
            break;
        }
    }

    if (myPrinter != null) {            
        PrinterJob job = PrinterJob.getPrinterJob();

        try {
            job.setPrintService(myPrinter);
            job.setPageable(new PDFPageable(myDoc));
            job.print();
        } catch (PrinterException e) {
            // Handle the exception.
        }
    } else {
        System.out.println("no printer services found");
    }

}

Answer 1

This may be because your printers don't natively support PDFs. I actually managed to print a PDF with your code, but it printed it as it would look if a PDF file was opened as a text file.

One solution is to use Apache's PDF library for Java: PDFBox. The file can be loaded like so:

PDDocument myDoc = PDDocument.load(new File(epsilon));

To print the file, use PrinterJob instead of DocPrintJob:

PrinterJob job = PrinterJob.getPrinterJob();

try {
    job.setPrintService(myPrinter);
    job.setPageable(new PDFPageable(myDoc));
    job.print();
} catch (PrinterException e) {
    // Handle the exception.
}