Chapter 1: Introducing PDF and iText

10th October 2015
admin-marketing

These examples were written in the context of Chapter 1 of the book "iText in Action - Second Edition".

HelloWorld.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * First iText example: Hello World.
 */
public class HelloWorld {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello.pdf";
    
    /**
     * Creates a PDF file: hello.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        new HelloWorld().createPdf(RESULT);
    }
 
    /**
     * Creates a PDF document.
     * @param filename the path to the new PDF document
     * @throws    DocumentException 
     * @throws    IOException 
     */
    public void createPdf(String filename)
    throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(filename));
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World!"));
        // step 5
        document.close();
    }
}
HelloWorldNarrow.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Hello World: document constructor.
 */
public class HelloWorldNarrow {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_narrow.pdf";
    
    /**
     * Creates a PDF file: hello_narrow.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
         throws DocumentException, IOException {
        // step 1
        // Using a custom page size
        Rectangle pagesize = new Rectangle(216f, 720f);
        Document document = new Document(pagesize, 36f, 72f, 108f, 180f);
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph(
            "Hello World! Hello People! " +
            "Hello Sky! Hello Sun! Hello Moon! Hello Stars!"));
        // step 5
        document.close();
    }
}
HelloWorldMaximum.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Creates a PDF with the biggest possible page size.
 */
public class HelloWorldMaximum {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_maximum.pdf";
    
    /**
     * Creates a PDF file: hello_maximum.pdf
     * Important notice: the PDF is valid (in conformance with
     * ISO-32000), but some PDF viewers won't be able to render
     * the PDF correctly due to their own limitations.
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        // maximum page size
        Document document = new Document(new Rectangle(14400, 14400));
        // step 2
        PdfWriter writer =
            PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // changes the user unit
        writer.setUserunit(75000f);
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World"));
        // step 5
        document.close();
    }
}
HelloWorldLetter.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Hello World example using the paper size Letter.
 */
public class HelloWorldLetter {
    
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_letter.pdf";
    
    /**
     * Creates a PDF file: hello_letter.pdf.
     * @param    args    no arguments needed
     */
    public static void main(String[] args) throws DocumentException, IOException {
        // step 1
        // Specifying the page size
        Document document = new Document(PageSize.LETTER);
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World"));
        // step 5
        document.close();
    }
}
HelloWorldLandscape1.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * A possible way to create a document in the landscape format.
 */
public class HelloWorldLandscape1 {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_landscape1.pdf";
    
    /**
     * Creates a PDF file: hello_landscape1.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        // landscape format using the rotate() method
        Document document = new Document(PageSize.LETTER.rotate());
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World"));
        // step 5
        document.close();
    }
}
HelloWorldLandscape2.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.*;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * A possible way to create a document in the landscape format.
 */
public class HelloWorldLandscape2 {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_landscape2.pdf";
    
    /**
     * Creates a PDF file: hello_landscape2.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        // landscape format because width > height
        Document document = new Document(new Rectangle(792, 612));
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World"));
        // step 5
        document.close();
    }
}
HelloWorldMirroredMargins.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Examples with mirrored margins.
 */
public class HelloWorldMirroredMargins {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_mirrored_margins.pdf";
 
    /**
     * Creates a PDF file: hello_mirrored_margins.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        document.setPageSize(PageSize.A5);
        document.setMargins(36, 72, 108, 180);
        document.setMarginMirroring(true);
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph(
            "The left margin of this odd page is 36pt (0.5 inch); " +
            "the right margin 72pt (1 inch); " +
            "the top margin 108pt (1.5 inch); " +
            "the bottom margin 180pt (2.5 inch)."));
        Paragraph paragraph = new Paragraph();
        paragraph.setAlignment(Element.ALIGN_JUSTIFIED);
        for (int i = 0; i < 20; i++) {
            paragraph.add("Hello World! Hello People! " +
                    "Hello Sky! Hello Sun! Hello Moon! Hello Stars!");
        }
        document.add(paragraph);
        document.add(new Paragraph(
            "The right margin of this even page is 36pt (0.5 inch); " +
            "the left margin 72pt (1 inch)."));
        // step 5
        document.close();
    }
}
HelloWorldMirroredMarginsTop.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.PageSize;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Examples with mirrored margins.
 */
public class HelloWorldMirroredMarginsTop {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_mirrored_top.pdf";
 
    /**
     * Creates a PDF file: hello_mirrored_margins.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // setting page size, margins and mirrered margins
        document.setPageSize(PageSize.A5);
        document.setMargins(36, 72, 108, 180);
        document.setMarginMirroringTopBottom(true);
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph(
            "The left margin of this odd page is 36pt (0.5 inch); " +
            "the right margin 72pt (1 inch); " +
            "the top margin 108pt (1.5 inch); " +
            "the bottom margin 180pt (2.5 inch)."));
        Paragraph paragraph = new Paragraph();
        paragraph.setAlignment(Element.ALIGN_JUSTIFIED);
        for (int i = 0; i < 20; i++) {
            paragraph.add("Hello World! Hello People! " +
                "Hello Sky! Hello Sun! Hello Moon! Hello Stars!");
        }
        document.add(paragraph);
        document.add(new Paragraph("The top margin 180pt (2.5 inch)."));
        // step 5
        document.close();
    }
}
HelloWorldMemory.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Creates a PDF file in memory.
 */
public class HelloWorldMemory {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_memory.pdf";
    
    /**
     * Creates a PDF file: hello_memory.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        // we'll create the file in memory
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PdfWriter.getInstance(document, baos);
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World!"));
        // step 5
        document.close();
    
        // let's write the file in memory to a file anyway
        FileOutputStream fos = new FileOutputStream(RESULT);
        fos.write(baos.toByteArray());
        fos.close();
    }
}
HelloWorldVersion_1_7.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Creates a Hello World in PDF version 1.7
 */
public class HelloWorldVersion_1_7 {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT =
        "results/part1/chapter01/hello_1_7.pdf";
    
    /**
     * Creates a PDF file: hello.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        // Creating a PDF 1.7 document
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        writer.setPdfVersion(PdfWriter.VERSION_1_7);
        // step 3
        document.open();
        // step 4
        document.add(new Paragraph("Hello World!"));
        // step 5
        document.close();
    }
}
HelloWorldDirect.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * First iText example: Hello World.
 */
public class HelloWorldDirect {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_direct.pdf";
    
    /**
     * Creates a PDF file: hello_direct.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer =
            PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // step 3
        document.open();
        // step 4
        PdfContentByte canvas = writer.getDirectContentUnder();
        writer.setCompressionLevel(0);
        canvas.saveState();                               // q
        canvas.beginText();                               // BT
        canvas.moveText(36, 788);                         // 36 788 Td
        canvas.setFontAndSize(BaseFont.createFont(), 12); // /F1 12 Tf
        canvas.showText("Hello World");                   // (Hello World)Tj
        canvas.endText();                                 // ET
        canvas.restoreState();                            // Q
        // step 5
        document.close();
    }
}
HelloWorldColumn.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * First iText example: Hello World.
 */
public class HelloWorldColumn {
 
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello_column.pdf";
    
    /**
     * Creates a PDF file: hello_column.pdf
     * @param args no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer
            = PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        // step 3
        document.open();
        // step 4
        // we set the compression to 0 so that we can read the PDF syntax
        writer.setCompressionLevel(0);
        // writes something to the direct content using a convenience method
        Phrase hello = new Phrase("Hello World");
        PdfContentByte canvas = writer.getDirectContentUnder();
        ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT,
            hello, 36, 788, 0);
        // step 5
        document.close();
    }
}
HelloZip.java
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
 
package part1.chapter01;
 
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
 
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.PdfWriter;
 
/**
 * Writing one PDF file to a ZipOutputStream.
 */
public class HelloZip {
    
    /** Path to the resulting PDF file. */
    public static final String RESULT
        = "results/part1/chapter01/hello.zip";
    
    /**
     * Creates a zip file with five PDF documents:
     * hello1.pdf to hello5.pdf
     * @param    args    no arguments needed
     */
    public static void main(String[] args)
        throws DocumentException, IOException {
        // creating a zip file with different PDF documents
        ZipOutputStream zip =
            new ZipOutputStream(new FileOutputStream(RESULT));
        for (int i = 1; i <= 3; i++) {
            ZipEntry entry = new ZipEntry("hello_" + i + ".pdf");
            zip.putNextEntry(entry);
            
            // step 1
            Document document = new Document();
            // step 2
            PdfWriter writer = PdfWriter.getInstance(document, zip);
            writer.setCloseStream(false);
            // step 3
            document.open();
            // step 4
            document.add(new Paragraph("Hello " + i));
            // step 5
            document.close();
            
            zip.closeEntry();
        }
        zip.close();
    }
}
HelloWorld.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorld : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      using (Document document = new Document()) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph("Hello World!")); 
      }          
    }
// ===========================================================================
  }
}
HelloWorldNarrow.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * Creates a PDF file: hello_narrow.pdf
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldNarrow : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      // Using a custom page size
      Rectangle pagesize = new Rectangle(216f, 720f);
      using (Document document = new Document(pagesize, 36f, 72f, 108f, 180f)) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph(
          "Hello World! Hello People! " +
          "Hello Sky! Hello Sun! Hello Moon! Hello Stars!")
        );
      }
    }
// ===========================================================================
  }
}
HelloWorldMaximum.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * Creates a PDF with the biggest possible page size.
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldMaximum : IWriter {
// ===========================================================================
    /**
     * Creates a PDF file: hello_maximum.pdf
     * Important notice: the PDF is valid (in conformance with
     * ISO-32000), but some PDF viewers won't be able to render
     * the PDF correctly due to their own limitations.
     */
    public void Write(Stream stream) {
      // step 1
      // Specifying the page size
      using (Document document = new Document(new Rectangle(14400, 14400))) {
        // step 2        
        PdfWriter writer = PdfWriter.GetInstance(document, stream);
        // changes the user unit
        writer.Userunit = 75000f;        
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph("HelloWorldMaximum"));
      }
    }
// ===========================================================================
  }
}
HelloWorldLetter.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * Hello World example using the paper size Letter.
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldLetter : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      // Specifying the page size
      using (Document document = new Document(PageSize.LETTER)) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph("HelloWorldLetter"));
      }
    }
// ===========================================================================
  }
}
HelloWorldLandscape1.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * A possible way to create a document in the landscape format.
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldLandscape1 : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      // landscape format using the rotate() method
      using (Document document = new Document(PageSize.LETTER.Rotate())) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph("HelloWorldLandscape1"));
      }
    }
// ===========================================================================
  }
}
HelloWorldLandscape2.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * A possible way to create a document in the landscape format.
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldLandscape2 : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      // landscape format because width > height
      using (Document document = new Document(new Rectangle(792, 612))) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph("HelloWorldLandscape2"));
      }
    }
// ===========================================================================
  }
}
HelloWorldMirroredMargins.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
/**
 * Examples with mirrored margins.
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldMirroredMargins : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      using (Document document = new Document()) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        document.SetPageSize(PageSize.A5);
        document.SetMargins(36, 72, 108, 180);
        document.SetMarginMirroring(true);        
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph(
          "The left margin of this odd page is 36pt (0.5 inch); " +
          "the right margin 72pt (1 inch); " +
          "the top margin 108pt (1.5 inch); " +
          "the bottom margin 180pt (2.5 inch).")
        );
        Paragraph paragraph = new Paragraph();
        paragraph.Alignment = Element.ALIGN_JUSTIFIED;
        for (int i = 0; i < 20; i++) {
          paragraph.Add("Hello World! Hello People! " +
          "Hello Sky! Hello Sun! Hello Moon! Hello Stars!"
          );
        }
        document.Add(paragraph);
        document.Add(new Paragraph(
          "The right margin of this even page is 36pt (0.5 inch); " +
          "the left margin 72pt (1 inch).")
        );
      }
    }
// ===========================================================================
  }
}
HelloWorldMirroredMarginsTop.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * Examples with mirrored margins.
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldMirroredMarginsTop : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      // Specifying the page size
      using (Document document = new Document(PageSize.LETTER)) {
        // step 2
        PdfWriter.GetInstance(document, stream);
        // setting page size, margins and mirrered margins
        document.SetPageSize(PageSize.A5);
        document.SetMargins(36, 72, 108, 180);
        document.SetMarginMirroringTopBottom(true);        
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph(
          "The left margin of this odd page is 36pt (0.5 inch); " +
          "the right margin 72pt (1 inch); " +
          "the top margin 108pt (1.5 inch); " +
          "the bottom margin 180pt (2.5 inch).")
        );
        Paragraph paragraph = new Paragraph();
        paragraph.Alignment = Element.ALIGN_JUSTIFIED;
        for (int i = 0; i < 20; i++) {
          paragraph.Add("Hello World! Hello People! " +
            "Hello Sky! Hello Sun! Hello Moon! Hello Stars!"
          );
        }
        document.Add(paragraph);
        document.Add(new Paragraph("The top margin 180pt (2.5 inch)."));
      }
    }
// ===========================================================================
  }
}
HelloWorldMemory.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using System.Web;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldMemory : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      HttpContext current = HttpContext.Current;
// running from: [1] web context or [2] command line?
      if (current != null) {
// [1]      
        using (MemoryStream ms = new MemoryStream()) {
          // step 1
          using (Document document = new Document()) {
            // step 2
            PdfWriter.GetInstance(document, ms);
            // step 3
            document.Open();
            // step 4
            document.Add(new Paragraph("HelloWorldMemory"));      
          }
          HttpContext.Current.Response.BinaryWrite(ms.ToArray());
        }
      }
// [2]      
      else {
        // step 1
        using (Document document = new Document()) {
          // step 2
          PdfWriter.GetInstance(document, stream);
          // step 3
          document.Open();
          // step 4
          document.Add(new Paragraph("HelloWorldMemory"));      
        }
      }
    }
// ===========================================================================
  }
}
HelloWorldVersion_1_7.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
/**
 * Creates a Hello World in PDF version 1.7
 */
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldVersion_1_7 : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      using (Document document = new Document()) {
        // step 2
        // Creating a PDF 1.7 document
        PdfWriter writer = PdfWriter.GetInstance(document, stream);
        writer.PdfVersion = PdfWriter.VERSION_1_7;        
        // step 3
        document.Open();
        // step 4
        document.Add(new Paragraph("HelloWorldVersion_1_7"));
      }
    }
// ===========================================================================
  }
}
HelloWorldDirect.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldDirect : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      using (Document document = new Document()) {
        // step 2
        var writer = PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        PdfContentByte canvas = writer.DirectContentUnder;
        writer.CompressionLevel =0;
        canvas.SaveState();                               // q
        canvas.BeginText();                               // BT
        canvas.MoveText(36, 788);                         // 36 788 Td
        canvas.SetFontAndSize(BaseFont.CreateFont(), 12); // /F1 12 Tf
        canvas.ShowText("HelloWorldDirect");              // (Hello World)Tj
        canvas.EndText();                                 // ET
        canvas.RestoreState();                            // Q
      }
    }
// ===========================================================================
  }
}
HelloWorldColumn.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using iTextSharp.text;
using iTextSharp.text.pdf;
 
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloWorldColumn : IWriter {
// ===========================================================================
    public void Write(Stream stream) {
      // step 1
      using (Document document = new Document()) {
        // step 2
        var writer = PdfWriter.GetInstance(document, stream);
        // step 3
        document.Open();
        // step 4
        // we set the compression to 0 so that we can read the PDF syntax
        writer.CompressionLevel = 0;
        // writes something to the direct content using a convenience method
        Phrase hello = new Phrase("HelloWorldColumn");
        PdfContentByte canvas = writer.DirectContentUnder;
        ColumnText.ShowTextAligned(canvas, Element.ALIGN_LEFT,
          hello, 36, 788, 0
        );
      }
    }
// ===========================================================================
  }
}
HelloZip.cs
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/*
 * This class is part of the book "iText in Action - 2nd Edition"
 * written by Bruno Lowagie (ISBN: 9781935182610)
 * For more info, go to: http://itextpdf.com/examples/
 * This example only works with the AGPL version of iText.
 */
using System;
using System.IO;
using Ionic.Zip;
using iTextSharp.text;
using iTextSharp.text.pdf;
/*
 * word of warning - .NET ZIP data compression/archive 
 * format implementation is **severely** lacking:
 * [1] only supported in .NET 3.0 and above
 * [2] compression non-existent; see 'Remarks' section when 
 *     setting 'CompressionOption' parameter of Package.CreatePart()
 *     http://msdn.microsoft.com/en-us/library/ms568067.aspx
 * 
 * so instead we use the excellent DotNetZip library:
 * 
 * http://dotnetzip.codeplex.com/
*/
namespace kuujinbo.iTextInAction2Ed.Chapter01 {
  public class HelloZip : IWriter {
// ===========================================================================
/*
 * Creates a zip file with three PDF documents:
 * hello1.pdf to hello3.pdf
 */
    public void Write(Stream stream) {
      using (ZipFile zip = new ZipFile()) {
        for (int i = 1; i <= 3; i++) {
          using (MemoryStream ms = new MemoryStream()) {
            // step 1
            using (Document document = new Document()) {
              // step 2
              PdfWriter writer = PdfWriter.GetInstance(document, ms);
              // step 3
              document.Open();
              // step 4
              document.Add(new Paragraph(string.Format("Hello {0}", i)));
            }
            string fileName = string.Format("hello_{0}.pdf", i);
            ZipEntry e = zip.AddEntry(fileName, ms.ToArray());
          }
        }
        zip.Save(stream);
      }
    }
// ===========================================================================
  }
}
iText 7
.NET

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