private void button1_Click(object sender, EventArgs e)
{
//Document:（文档）生成pdf必备的一个对象,生成一个Document示例
Document document = new Document(PageSize.A4, 30, 30, 5, 5);
//为该Document创建一个Writer实例：
PdfWriter.GetInstance(document, new FileStream("Chap0101.pdf", FileMode.Create));
//打开当前Document
document.Open();
//为当前Document添加内容：
document.Add(new Paragraph("Hello World"));
//另起一行。有几种办法建立一个段落，如：
Paragraph p1 = new Paragraph(new Chunk("This is my first paragraph.\n", FontFactory.GetFont(FontFactory.HELVETICA, 12)));
Paragraph p2 = new Paragraph(new Phrase("This is my second paragraph.", FontFactory.GetFont(FontFactory.HELVETICA, 12)));
Paragraph p3 = new Paragraph("This is my third paragraph.", FontFactory.GetFont(FontFactory.HELVETICA, 12));
//所有有些对象将被添加到段落中：
p1.Add("you can add string here\n\t");
p1.Add(new Chunk("you can add chunks \n")); p1.Add(new Phrase("or you can add phrases.\n"));
document.Add(p1); document.Add(p2); document.Add(p3);
//创建了一个内容为“hello World”、红色、斜体、COURIER字体、尺寸20的一个块：
Chunk chunk = new Chunk("Hello world", FontFactory.GetFont(FontFactory.COURIER, 20, iTextSharp.text.Font.COURIER, new iTextSharp.text.Color(255, 0, 0)));
document.Add(chunk);
//如果你希望一些块有下划线或删除线，你可以通过改变字体风格简单做到：
Chunk chunk1 = new Chunk("This text is underlined", FontFactory.GetFont(FontFactory.HELVETICA, 12, iTextSharp.text.Font.UNDEFINED));
Chunk chunk2 = new Chunk("This font is of type ITALIC | STRIKETHRU", FontFactory.GetFont(FontFactory.HELVETICA, 12, iTextSharp.text.Font.ITALIC | iTextSharp.text.Font.STRIKETHRU));
//改变块的背景
chunk2.SetBackground(new iTextSharp.text.Color(0xFF, 0xFF, 0x00));
//上标/下标
chunk1.SetTextRise(5);
document.Add(chunk1);
document.Add(chunk2);
//外部链接示例：
Anchor anchor = new Anchor("website", FontFactory.GetFont(FontFactory.HELVETICA, 12, iTextSharp.text.Font.UNDEFINED, new iTextSharp.text.Color(0, 0, 255)));
anchor.Reference = "http://itextsharp.sourceforge.net/";
anchor.Name = "website";
//内部链接示例：
Anchor anchor1 = new Anchor("This is an internal link\n\n");
anchor1.Name = "link1";
Anchor anchor2 = new Anchor("Click here to jump to the internal link\n\f");
anchor2.Reference = "#link1";
document.Add(anchor);document.Add(anchor1);document.Add(anchor2);
//排序列表示例：
List list = new List(true, 20);
list.Add(new ListItem("First line"));
list.Add(new ListItem("The second line is longer to see what happens once the end of the line is reached. Will it start on a new line?"));
list.Add(new ListItem("Third line"));
document.Add(list);
//文本注释：
Annotation a = new Annotation("authors","Maybe its because I wanted to be an author myself that I wrote iText.");
document.Add(a);
//包含页码没有任何边框的页脚。
HeaderFooter footer = new HeaderFooter(new Phrase("This is page: "), true);
footer.Border = iTextSharp.text.Rectangle.NO_BORDER;
document.Footer = footer;
//Chapter对象和Section对象自动构建一个树：
iTextSharp.text.Font f1 = new iTextSharp.text.Font();
f1.SetStyle(iTextSharp.text.Font.BOLD);
Paragraph cTitle = new Paragraph("This is chapter 1", f1);
Chapter chapter = new Chapter(cTitle, 1);
Paragraph sTitle = new Paragraph("This is section 1 in chapter 1", f1);
Section section = chapter.AddSection(sTitle, 1);
document.Add(chapter);
//构建了一个简单的表：
Table aTable = new Table(4, 4);
aTable.AutoFillEmptyCells = true;
aTable.AddCell("2.2", new Point(2, 2));
aTable.AddCell("3.3", new Point(3, 3));
aTable.AddCell("2.1", new Point(2, 1));
aTable.AddCell("1.3", new Point(1, 3));
document.Add(aTable);
//构建了一个不简单的表：
Table table = new Table(3);
table.BorderWidth = 1;
table.BorderColor = new iTextSharp.text.Color(0, 0, 255);
table.Cellpadding = 5;
table.Cellspacing = 5;
Cell cell = new Cell("header");
cell.Header = true;
cell.Colspan = 3;
table.AddCell(cell);
cell = new Cell("example cell with colspan 1 and rowspan 2");
cell.Rowspan = 2;
cell.BorderColor = new iTextSharp.text.Color(255, 0, 0);
table.AddCell(cell);
table.AddCell("1.1");
table.AddCell("2.1");
table.AddCell("1.2");
table.AddCell("2.2");
table.AddCell("cell test1");
cell = new Cell("big cell");
cell.Rowspan = 2;
cell.Colspan = 2;
cell.BackgroundColor = new iTextSharp.text.Color(0xC0, 0xC0, 0xC0);
table.AddCell(cell);
table.AddCell("cell test2");
// 改变了单元格“big cell”的对齐方式：
cell.HorizontalAlignment = Element.ALIGN_CENTER;
cell.VerticalAlignment = Element.ALIGN_MIDDLE;
document.Add(table);
//关闭Document
document.Close();
}