/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.pdfbox.examples.pdmodel;

import java.io.IOException;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;

import org.apache.pdfbox.pdmodel.PDPageContentStream;

import org.apache.pdfbox.pdmodel.font.PDFont;
import org.apache.pdfbox.pdmodel.font.PDType1Font;
import org.apache.pdfbox.pdmodel.font.Standard14Fonts.FontName;

/**
 * Creates a "Hello World" PDF using the built-in Helvetica font.
 *
 * The example is taken from the PDF file format specification.
 */
public final class HelloWorld
{
    private HelloWorld()
    {
    }
    
    public static void main(String[] args) throws IOException
    {
        if( args.length != 2 )
        {
            System.err.println("usage: " + HelloWorld.class.getName() + " <output-file> <Message>");
            System.exit(1);
        }

        String filename = args[0];
        String message = args[1];
        
        try (PDDocument doc = new PDDocument())
        {
            PDPage page = new PDPage();
            doc.addPage(page);
            
            PDFont font = new PDType1Font(FontName.HELVETICA_BOLD);

            try (PDPageContentStream contents = new PDPageContentStream(doc, page))
            {
                contents.beginText();
                contents.setFont(font, 12);
                contents.newLineAtOffset(100, 700);
                contents.showText(message);
                contents.endText();
            }
            
            doc.save(filename);
        }
    }
}
