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* Copyright (c) 2003, www.pdfbox.org
* All rights reserved.
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*
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package org.pdfbox.examples.persistence;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.pdfbox.cos.COSArray;
import org.pdfbox.cos.COSDocument;
import org.pdfbox.cos.COSDictionary;
import org.pdfbox.cos.COSInteger;
import org.pdfbox.cos.COSName;
import org.pdfbox.cos.COSStream;
import org.pdfbox.exceptions.COSVisitorException;
import org.pdfbox.pdfwriter.COSWriter;
/**
* This is an example that creates a simple document.
*
* The example is taken from the pdf file format specification.
*
* @author Michael Traut
* @version $Revision: 1.8 $
*/
public class HelloWorldDoc
{
/**
* Constructor.
*/
public HelloWorldDoc()
{
super();
}
/**
* create the second sample document from the PDF file format specification
*
* @param file The file to write the PDF to.
* @param message The message to write in the file.
*
* @throws IOException If there is an error writing the data.
* @throws COSVisitorException If there is an error generating the PDF document.
*/
public void doIt( String file, String message) throws IOException, COSVisitorException
{
// the document
COSDocument doc = null;
OutputStream os = null;
COSWriter writer = null;
try
{
doc = new COSDocument();
// the pages dict
COSDictionary pages = new COSDictionary();
pages.setItem(COSName.TYPE, COSName.PAGES);
// the pagesarray
COSArray pagesArray = new COSArray();
// a page
COSDictionary page = new COSDictionary();
page.setItem(COSName.TYPE, COSName.PAGE);
page.setItem(COSName.PARENT, doc.createObject(pages));
COSArray mediaBox = new COSArray();
mediaBox.add( new COSInteger(0));
mediaBox.add( new COSInteger(0));
mediaBox.add( new COSInteger(612));
mediaBox.add( new COSInteger(792));
page.setItem(COSName.getPDFName("MediaBox"), mediaBox);
byte[] bytes = ("BT /F1 24 Tf 100 100 Td (" + message + ") Tj ET").getBytes();
COSDictionary streamDict = new COSDictionary();
streamDict.setItem(COSName.LENGTH, new COSInteger(bytes.length));
COSStream contents = new COSStream(streamDict,doc.getScratchFile());
OutputStream output = contents.createUnfilteredStream();
output.write(bytes);
output.close();
page.setItem(COSName.CONTENTS, doc.createObject(contents));
COSDictionary resources = new COSDictionary();
// the procset
COSArray procSet = new COSArray();
procSet.add(COSName.getPDFName("PDF"));
procSet.add(COSName.getPDFName("Text"));
resources.setItem(COSName.getPDFName("ProcSet"), doc.createObject(procSet));
// the font
COSDictionary font = new COSDictionary();
font.setItem(COSName.TYPE, COSName.FONT);
font.setItem(COSName.SUBTYPE, COSName.getPDFName("Type1"));
font.setItem(COSName.getPDFName("Name"), COSName.getPDFName("F1"));
font.setItem(COSName.getPDFName("BaseFont"), COSName.getPDFName("Helvetica"));
COSDictionary fontDict = new COSDictionary();
fontDict.setItem(COSName.getPDFName("F1"), doc.createObject(font));
resources.setItem(COSName.getPDFName("Font"), fontDict);
page.setItem(COSName.RESOURCES, resources);
// now add the page
pagesArray.add(doc.createObject(page));
pages.setItem(COSName.KIDS, pagesArray);
pages.setItem(COSName.COUNT, new COSInteger(pagesArray.size()));
// the catalog dict
COSDictionary catalog = new COSDictionary();
catalog.setItem(COSName.TYPE, COSName.CATALOG);
catalog.setItem(COSName.PAGES, doc.createObject(pages));
doc.createObject(catalog);
//The document trailer
COSDictionary trailer = new COSDictionary();
trailer.setItem( COSName.ROOT, catalog );
doc.setTrailer( trailer );
os = new FileOutputStream( file );
writer = new COSWriter(os);
writer.write(doc);
}
finally
{
doc.close();
os.close();
writer.close();
}
}
/**
* This will create a hello world PDF document.
* <br />
* see usage() for commandline
*
* @param args Command line arguments.
*/
public static void main(String[] args)
{
HelloWorldDoc app = new HelloWorldDoc();
try
{
if( args.length != 2 )
{
app.usage();
}
else
{
app.doIt( args[0], args[1] );
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
/**
* This will print out a message telling how to use this example.
*/
private void usage()
{
System.err.println( "usage: " + this.getClass().getName() + " <output-file> <Message>" );
}
}