In this example we are going to see how to print a document to a .ps file in Java. This is very useful when you want to create simple and easy previews of the print that the user might perform.

In order to print to a file, one should follow these steps:

• Open a new pdf file to print using BufferedInputStream(new FileInputStream("myfile.pdf")).
• Create a PDF doc flavor using DocFlavor.INPUT_STREAM.PDF that returns aDocFlavor object.
• Use PrintServiceLookup.lookupDefaultPrintService() to locate the default print service for this environment.
• Use createPrintJob() to create and return a DocPrintJob capable of handling data from any of the supported document flavors.
• Create a class that extends PrintJobAdapter.
• and override printJobCompleted. Then register a listener to the print job to get notified when the job is complete using.
• Set up the PrintRequestAttributeSet using HashPrintRequestAttributeSet.
• Use attributes.add(newDestination(new java.net.URI("file:C:/myfile.ps"))) to set the destination document.

Let’s see the code:

package com.javacodegeeks.snippets.desktop;import java.io.BufferedInputStream;import java.io.FileInputStream;import java.io.InputStream;import javax.print.Doc;import javax.print.DocFlavor;import javax.print.DocPrintJob;import javax.print.PrintService;import javax.print.PrintServiceLookup;import javax.print.SimpleDoc;import javax.print.attribute.HashPrintRequestAttributeSet;import javax.print.attribute.PrintRequestAttributeSet;import javax.print.attribute.standard.Destination;import javax.print.event.PrintJobAdapter;import javax.print.event.PrintJobEvent;public class PrintToFileWithJava {private static boolean jobRunning = true;public static void main(String[] args) throws Exception {// Open the image file  InputStream is = new BufferedInputStream(new FileInputStream("myfile.pdf"));  // create a PDF doc flavor  DocFlavor flavor = DocFlavor.INPUT_STREAM.PDF;  // Locate the default print service for this environment.  PrintService service = PrintServiceLookup.lookupDefaultPrintService();  // Create and return a PrintJob capable of handling data from  // any of the supported document flavors.  DocPrintJob printJob = service.createPrintJob();  // register a listener to get notified when the job is complete  printJob.addPrintJobListener(new JobCompleteMonitor());  // Construct a SimpleDoc with the specified   // print data, doc flavor and doc attribute set.  Doc doc = new SimpleDoc(is, flavor, null);  // set up the attributes  PrintRequestAttributeSet attributes = new HashPrintRequestAttributeSet();  attributes.add(new Destination(new java.net.URI("file:C:/myfile.ps")));  // Print a document with the specified job attributes.  printJob.print(doc, attributes);  while (jobRunning) {  Thread.sleep(1000);  }  System.out.println("Exiting app");  is.close();}private static class JobCompleteMonitor extends PrintJobAdapter {@Overridepublic void printJobCompleted(PrintJobEvent jobEvent) {System.out.println("Job completed");jobRunning = false;}}}

 
This was an example on how to print to file with Java.

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