如何运用Java组件itext生成pdf
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首先从iText的官网下载这个开源的小组件。iText官方网站
Java版iText组件
Java版工具包
C#版iText组件
C#版工具包
这里笔者使用的是Java版itext-5.2.1。
将itext-5.2.1.zip压缩包解压缩后得到7个文件：itextpdf-5.2.1.jar(核心组件)、itextpdf-5.2.1-javadoc.jar(API文档)、itextpdf-5.2.1-sources.jar(源代码)、itext-xtra-5.2.1.jar、itext-xtra-5.2.1-javadoc.jar、itext-xtra-5.2.1-sources.jar
使用5步即可生成一个简单的PDF文档。
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1 // 1.创建 Document 对象
2 Document _document = new Document();
3 // 2.创建书写器，通过书写器将文档写入磁盘
4 PdfWriter _pdfWriter = PdfWriter.getInstance(_document, new FileOutputStream("生成文件的路径"));
5 // 3.打开文档
6 _document.open();
7 // 4.向文档中添加内容
8 _document.add(new Paragraph("Hi"));
9 // 5.关闭文档
10 _document.close();
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OK，搞定，不出问题的话就会在你指定的路径中生成一个PDF文档，内容是纯文本的“Hi”。
可是这样并不能完全满足我们的需求，因为通常我们要生成的PDF文件不一定是纯文本格式的，比如我现在要实现打印销售单的功能，那么最起码需要绘制表格才行，怎么办呢？且跟笔者继续向下研究。
在iText中，有专门的表格类，即PdfPTable类。笔者做了一个简单的表格示例，请先看代码：
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1 OutTradeList _otl = this.getOtlBiz().findOutTradeListById(this.getOtlid());
2 String _fileName = _otl.getOtlId() + ".pdf";
3
4 // iText 处理中文
5 BaseFont _baseFont = BaseFont.createFont("STSongStd-Light", "UniGB-UCS2-H", true);
6 // 1.创建 Document 对象
7 Document _document = new Document(PageSize.A4);
8
9 HttpServletResponse response = ServletActionContext.getResponse();
10 response.setContentType("application/pdf; charset=ISO-8859-1");
11 response.setHeader("Content-Disposition", "inline; filename=" + new String(_fileName.getBytes(), "iso8859-1"));
12
13 // 2.创建书写器，通过书写器将文档写入磁盘
14 PdfWriter _pdfWriter = null;
15 try
16 _pdfWriter = PdfWriter.getInstance(_document, response.getOutputStream());
17 catch (Exception e)
18 this.setMessage("单据生成失败，请检查服务器目录权限配置是否正确");
19 e.printStackTrace();
20 System.out.println("2.挂了");
21 // return INPUT;
22 return null;
23
24 if(_pdfWriter == null)
25 this.setMessage("单据生成失败，请检查服务器目录权限配置是否正确");
26 System.out.println("3.挂了");
27 // return INPUT;
28 return null;
29
30
31 // 3.打开文档
32 _document.open();
33
34 // 4.创建需要填入文档的元素
35 PdfPTable _table = new PdfPTable(4);
36 PdfPCell _cell = null;
37
38 _table.addCell(new Paragraph("单据号", new Font(_baseFont)));
39 _cell = new PdfPCell(new Paragraph(_otl.getOtlId()));
40 _cell.setColspan(3);
41 _table.addCell(_cell);
42
43 _table.addCell(new Paragraph("客户名称", new Font(_baseFont)));
44 _cell = new PdfPCell(new Paragraph(_otl.getClients().getName(), new Font(_baseFont)));
45 _cell.setColspan(3);
46 _table.addCell(_cell);
47
48 _table.addCell(new Paragraph("销售日期", new Font(_baseFont)));
49 _cell = new PdfPCell(new Paragraph(_otl.getOutDate().toString()));
50 _cell.setColspan(3);
51 _table.addCell(_cell);
52
53 _cell = new PdfPCell();
54 _cell.setColspan(4);
55 PdfPTable _tabGoods = new PdfPTable(7);
56 // 添加标题行
57 _tabGoods.setHeaderRows(1);
58 _tabGoods.addCell(new Paragraph("序号", new Font(_baseFont)));
59 _tabGoods.addCell(new Paragraph("商品名称", new Font(_baseFont)));
60 _tabGoods.addCell(new Paragraph("自定义码", new Font(_baseFont)));
61 _tabGoods.addCell(new Paragraph("规格", new Font(_baseFont)));
62 _tabGoods.addCell(new Paragraph("数量", new Font(_baseFont)));
63 _tabGoods.addCell(new Paragraph("单价", new Font(_baseFont)));
64 _tabGoods.addCell(new Paragraph("小计", new Font(_baseFont)));
65 Object[] _outTrades = _otl.getOutTrades().toArray();
66 // 将商品销售详细信息加入表格
67 for(int i = 0; i < _outTrades.length;)
68 if((_outTrades[i] != null) && (_outTrades[i] instanceof OutTrade))
69 OutTrade _ot = (OutTrade) _outTrades[i];
70 Goods _goods = _ot.getGoods();
71 _tabGoods.addCell(String.valueOf((++i)));
72 _tabGoods.addCell(new Paragraph(_goods.getName(), new Font(_baseFont)));
73 _tabGoods.addCell(_goods.getUserCode());
74 _tabGoods.addCell(_goods.getEtalon());
75 _tabGoods.addCell(String.valueOf(_ot.getNum()));
76 _tabGoods.addCell(String.valueOf(_ot.getPrice()));
77 _tabGoods.addCell(String.valueOf((_ot.getNum() * _ot.getPrice())));
78
79
80 _cell.addElement(_tabGoods);
81 _table.addCell(_cell);
82
83 _table.addCell(new Paragraph("总计", new Font(_baseFont)));
84 _cell = new PdfPCell(new Paragraph(_otl.getAllPrice().toString()));
85 _cell.setColspan(3);
86 _table.addCell(_cell);
87
88 _table.addCell(new Paragraph("操作员", new Font(_baseFont)));
89 _cell = new PdfPCell(new Paragraph(_otl.getProcure()));
90 _cell.setColspan(3);
91 _table.addCell(_cell);
92
93 // 5.向文档中添加内容，将表格加入文档中
94 _document.add(_table);
95
96 // 6.关闭文档
97 _document.close();
98 System.out.println(_fileName);
99 this.setPdfFilePath(_fileName);
100 System.out.println("3.搞定");
101 // return SUCCESS;
102 return null;
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以上代码是写在 Struts2 的 Action 中的，当用户发送了请求之后直接将生成的PDF文件用输出流写入到客户端，浏览器收到服务器的响应之后就会询问用户打开方式。
当然，我们也可以将文件写入磁盘等等。 参考技术A 用iText生成PDF文档需要5个步骤：
①建立com.lowagie.text.Document对象的实例。
Document document = new Document();
②建立一个书写器(Writer)与document对象关联，通过书写器(Writer)可以将文档写入到磁盘中。
PDFWriter.getInstance(document, new FileOutputStream("Helloworld.PDF"));
③打开文档。
document.open();
④向文档中添加内容。
document.add(new Paragraph("Hello World"));
⑤关闭文档。
document.close();
通过上面的5个步骤，就能产生一个Helloworld.PDF的文件，文件内容为"Hello World"。
Java操作PDF之iText超入门
iText是著名的开放项目，是用于生成PDF文档的一个java类库。通过iText不仅可以生成PDF或rtf的文档，而且可以将XML、Html文件转化为PDF文件。
http://itextpdf.com/
版本：itextpdf-5.2.1.jar
1、生成一个PDF
//Step 1—Create a Document.
Document document = new Document();
//Step 2—Get a PdfWriter instance.
PdfWriter.getInstance(document, new FileOutputStream(FILE_DIR + "createSamplePDF.pdf"));
//Step 3—Open the Document.
document.open();
//Step 4—Add content.
document.add(new Paragraph("Hello World"));
//Step 5—Close the Document.
document.close();
2、页面大小,页面背景色,页边空白,Title,Author,Subject,Keywords
//页面大小
Rectangle rect = new Rectangle(PageSize.B5.rotate());
//页面背景色
rect.setBackgroundColor(BaseColor.ORANGE);
Document doc = new Document(rect);
PdfWriter writer = PdfWriter.getInstance(doc, out);
//PDF版本(默认1.4)
writer.setPdfVersion(PdfWriter.PDF_VERSION_1_2);
//文档属性
doc.addTitle("[email protected]");
doc.addAuthor("[email protected]");
doc.addSubject("[email protected] sample");
doc.addKeywords("[email protected]");
doc.addCreator("[email protected]");
//页边空白
doc.setMargins(10, 20, 30, 40);
doc.open();
doc.add(new Paragraph("Hello World"));
3、设置密码
PdfWriter writer = PdfWriter.getInstance(doc, out);
// 设置密码为："World"
writer.setEncryption("Hello".getBytes(), "World".getBytes(),
PdfWriter.ALLOW_SCREENREADERS,
PdfWriter.STANDARD_ENCRYPTION_128);
doc.open();
doc.add(new Paragraph("Hello World"));
4、添加Page
document.open();
document.add(new Paragraph("First page"));
document.add(new Paragraph(Document.getVersion()));
document.newPage();
writer.setPageEmpty(false);
document.newPage();
document.add(new Paragraph("New page"));
5、添加水印(背景图)
//图片水印
PdfReader reader = new PdfReader(FILE_DIR + "setWatermark.pdf");
PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(FILE_DIR
+ "setWatermark2.pdf"));
Image img = Image.getInstance("resource/watermark.jpg");
img.setAbsolutePosition(200, 400);
PdfContentByte under = stamp.getUnderContent(1);
under.addImage(img);
//文字水印
PdfContentByte over = stamp.getOverContent(2);
over.beginText();
BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI,
BaseFont.EMBEDDED);
over.setFontAndSize(bf, 18);
over.setTextMatrix(30, 30);
over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE", 230, 430, 45);
over.endText();
//背景图
Image img2 = Image.getInstance("resource/test.jpg");
img2.setAbsolutePosition(0, 0);
PdfContentByte under2 = stamp.getUnderContent(3);
under2.addImage(img2);
stamp.close();
reader.close();
6、插入Chunk, Phrase, Paragraph, List
//Chunk对象: a String, a Font, and some attributes
document.add(new Chunk("China"));
document.add(new Chunk(" "));
Font font = new Font(Font.FontFamily.HELVETICA, 6, Font.BOLD, BaseColor.WHITE);
Chunk id = new Chunk("chinese", font);
id.setBackground(BaseColor.BLACK, 1f, 0.5f, 1f, 1.5f);
id.setTextRise(6);
document.add(id);
document.add(Chunk.NEWLINE);
document.add(new Chunk("Japan"));
document.add(new Chunk(" "));
Font font2 = new Font(Font.FontFamily.HELVETICA, 6, Font.BOLD, BaseColor.WHITE);
Chunk id2 = new Chunk("japanese", font2);
id2.setBackground(BaseColor.BLACK, 1f, 0.5f, 1f, 1.5f);
id2.setTextRise(6);
id2.setUnderline(0.2f, -2f);
document.add(id2);
document.add(Chunk.NEWLINE);
//Phrase对象: a List of Chunks with leading
document.newPage();
document.add(new Phrase("Phrase page"));
Phrase director = new Phrase();
Chunk name = new Chunk("China");
name.setUnderline(0.2f, -2f);
director.add(name);
director.add(new Chunk(","));
director.add(new Chunk(" "));
director.add(new Chunk("chinese"));
director.setLeading(24);
document.add(director);
Phrase director2 = new Phrase();
Chunk name2 = new Chunk("Japan");
name2.setUnderline(0.2f, -2f);
director2.add(name2);
director2.add(new Chunk(","));
director2.add(new Chunk(" "));
director2.add(new Chunk("japanese"));
director2.setLeading(24);
document.add(director2);
//Paragraph对象: a Phrase with extra properties and a newline
document.newPage();
document.add(new Paragraph("Paragraph page"));
Paragraph info = new Paragraph();
info.add(new Chunk("China "));
info.add(new Chunk("chinese"));
info.add(Chunk.NEWLINE);
info.add(new Phrase("Japan "));
info.add(new Phrase("japanese"));
document.add(info);
//List对象: a sequence of Paragraphs called ListItem
document.newPage();
List list = new List(List.ORDERED);
for (int i = 0; i < 10; i++) {
ListItem item = new ListItem(String.format("%s: %d movies",
"country" + (i + 1), (i + 1) * 100), new Font(
Font.FontFamily.HELVETICA, 6, Font.BOLD, BaseColor.WHITE));
List movielist = new List(List.ORDERED, List.ALPHABETICAL);
movielist.setLowercase(List.LOWERCASE);
for (int j = 0; j < 5; j++) {
ListItem movieitem = new ListItem("Title" + (j + 1));
List directorlist = new List(List.UNORDERED);
for (int k = 0; k < 3; k++) {
directorlist.add(String.format("%s, %s", "Name1" + (k + 1),
"Name2" + (k + 1)));
}
movieitem.add(directorlist);
movielist.add(movieitem);
}
item.add(movielist);
list.add(item);
}
document.add(list);
7、插入Anchor, Image, Chapter, Section
//Anchor对象: internal and external links
Paragraph country = new Paragraph();
Anchor dest = new Anchor("china", new Font(Font.FontFamily.HELVETICA, 14, Font.BOLD, BaseColor.BLUE));
dest.setName("CN");
dest.setReference("http://www.china.com");//external
country.add(dest);
country.add(String.format(": %d sites", 10000));
document.add(country);
document.newPage();
Anchor toUS = new Anchor("Go to first page.", new Font(Font.FontFamily.HELVETICA, 14, Font.BOLD, BaseColor.BLUE));
toUS.setReference("#CN");//internal
document.add(toUS);
//Image对象
document.newPage();
Image img = Image.getInstance("resource/test.jpg");
img.setAlignment(Image.LEFT | Image.TEXTWRAP);
img.setBorder(Image.BOX);
img.setBorderWidth(10);
img.setBorderColor(BaseColor.WHITE);
img.scaleToFit(1000, 72);//大小
img.setRotationDegrees(-30);//旋转
document.add(img);
//Chapter, Section对象（目录）
document.newPage();
Paragraph title = new Paragraph("Title");
Chapter chapter = new Chapter(title, 1);
title = new Paragraph("Section A");
Section section = chapter.addSection(title);
section.setBookmarkTitle("bmk");
section.setIndentation(30);
section.setBookmarkOpen(false);
section.setNumberStyle(
Section.NUMBERSTYLE_DOTTED_WITHOUT_FINAL_DOT);
Section subsection = section.addSection(new Paragraph("Sub Section A"));
subsection.setIndentationLeft(20);
subsection.setNumberDepth(1);
document.add(chapter);
8、画图
//左右箭头
document.add(new VerticalPositionMark() {
public void draw(PdfContentByte canvas, float llx, float lly,
float urx, float ury, float y) {
canvas.beginText();
BaseFont bf = null;
try {
bf = BaseFont.createFont(BaseFont.ZAPFDINGBATS, "", BaseFont.EMBEDDED);
} catch (Exception e) {
e.printStackTrace();
}
canvas.setFontAndSize(bf, 12);
// LEFT
canvas.showTextAligned(Element.ALIGN_CENTER, String.valueOf((char) 220), llx - 10, y, 0);
// RIGHT
canvas.showTextAligned(Element.ALIGN_CENTER, String.valueOf((char) 220), urx + 10, y + 8, 180);
canvas.endText();
}
});
//直线
Paragraph p1 = new Paragraph("LEFT");
p1.add(new Chunk(new LineSeparator()));
p1.add("R");
document.add(p1);
//点线
Paragraph p2 = new Paragraph("LEFT");
p2.add(new Chunk(new DottedLineSeparator()));
p2.add("R");
document.add(p2);
//下滑线
LineSeparator UNDERLINE = new LineSeparator(1, 100, null, Element.ALIGN_CENTER, -2);
Paragraph p3 = new Paragraph("NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN");
p3.add(UNDERLINE);
document.add(p3);
9、设置段落
Paragraph p = new Paragraph("In the previous example, you added a header and footer with the showTextAligned() method. This example demonstrates
that it’s sometimes more interesting to use PdfPTable and writeSelectedRows(). You can define a bottom border for each cell so that the header is
underlined. This is the most elegant way to add headers and footers, because the table mechanism allows you to position and align lines, images,
and text.");
//默认
p.setAlignment(Element.ALIGN_JUSTIFIED);
document.add(p);
document.newPage();
p.setAlignment(Element.ALIGN_JUSTIFIED);
p.setIndentationLeft(1 * 15f);
p.setIndentationRight((5 - 1) * 15f);
document.add(p);
//居右
document.newPage();
p.setAlignment(Element.ALIGN_RIGHT);
p.setSpacingAfter(15f);
document.add(p);
//居左
document.newPage();
p.setAlignment(Element.ALIGN_LEFT);
p.setSpacingBefore(15f);
document.add(p);
//居中
document.newPage();
p.setAlignment(Element.ALIGN_CENTER);
p.setSpacingAfter(15f);
p.setSpacingBefore(15f);
document.add(p);
10、删除Page
FileOutputStream out = new FileOutputStream(FILE_DIR + "deletePage.pdf");
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, out);
document.open();
document.add(new Paragraph("First page"));
document.add(new Paragraph(Document.getVersion()));
document.newPage();
writer.setPageEmpty(false);
document.newPage();
document.add(new Paragraph("New page"));
document.close();
PdfReader reader = new PdfReader(FILE_DIR + "deletePage.pdf");
reader.selectPages("1,3");
PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(FILE_DIR
+ "deletePage2.pdf"));
stamp.close();
reader.close();
11、插入Page
FileOutputStream out = new FileOutputStream(FILE_DIR + "insertPage.pdf");
Document document = new Document();
PdfWriter.getInstance(document, out);
document.open();
document.add(new Paragraph("1 page"));
document.newPage();
document.add(new Paragraph("2 page"));
document.newPage();
document.add(new Paragraph("3 page"));
document.close();
PdfReader reader = new PdfReader(FILE_DIR + "insertPage.pdf");
PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(FILE_DIR
+ "insertPage2.pdf"));
stamp.insertPage(2, reader.getPageSize(1));
ColumnText ct = new ColumnText(null);
ct.addElement(new Paragraph(24, new Chunk("INSERT PAGE")));
ct.setCanvas(stamp.getOverContent(2));
ct.setSimpleColumn(36, 36, 559, 770);
stamp.close();
reader.close();
12、排序page
PdfWriter writer = PdfWriter.getInstance(doc, out);
writer.setLinearPageMode();
doc.open();
doc.add(new Paragraph("1 page"));
doc.newPage();
doc.add(new Paragraph("2 page"));
doc.newPage();
doc.add(new Paragraph("3 page"));
doc.newPage();
doc.add(new Paragraph("4 page"));
doc.newPage();
doc.add(new Paragraph("5 page"));
int[] order = {4,3,2,1};
writer.reorderPages(order);
13、目录
// Code 1
document.add(new Chunk("Chapter 1").setLocalDestination("1"));
document.newPage();
document.add(new Chunk("Chapter 2").setLocalDestination("2"));
document.add(new Paragraph(new Chunk("Sub 2.1").setLocalDestination("2.1")));
document.add(new Paragraph(new Chunk("Sub 2.2").setLocalDestination("2.2")));
document.newPage();
document.add(new Chunk("Chapter 3").setLocalDestination("3"));
// Code 2
PdfContentByte cb = writer.getDirectContent();
PdfOutline root = cb.getRootOutline();
// Code 3
@SuppressWarnings("unused")
PdfOutline oline1 = new PdfOutline(root, PdfAction.gotoLocalPage("1", false), "Chapter 1");
PdfOutline oline2 = new PdfOutline(root, PdfAction.gotoLocalPage("2", false), "Chapter 2");
oline2.setOpen(false);
@SuppressWarnings("unused")
PdfOutline oline2_1 = new PdfOutline(oline2, PdfAction.gotoLocalPage("2.1", false), "Sub 2.1");
@SuppressWarnings("unused")
PdfOutline oline2_2 = new PdfOutline(oline2, PdfAction.gotoLocalPage("2.2", false), "Sub 2.2");
@SuppressWarnings("unused")
PdfOutline oline3 = new PdfOutline(root, PdfAction.gotoLocalPage("3", false), "Chapter 3");
14、Header, Footer
PdfWriter writer = PdfWriter.getInstance(doc, new FileOutputStream(FILE_DIR + "setHeaderFooter.pdf"));
writer.setPageEvent(new PdfPageEventHelper() {
public void onEndPage(PdfWriter writer, Document document) {
PdfContentByte cb = writer.getDirectContent();
cb.saveState();
cb.beginText();
BaseFont bf = null;
try {
bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.EMBEDDED);
} catch (Exception e) {
e.printStackTrace();
}
cb.setFontAndSize(bf, 10);
//Header
float x = document.top(-20);
//左
cb.showTextAligned(PdfContentByte.ALIGN_LEFT,
"H-Left",
document.left(), x, 0);
//中
cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
writer.getPageNumber()+ " page",
(document.right() + document.left())/2,
x, 0);
//右
cb.showTextAligned(PdfContentByte.ALIGN_RIGHT,
"H-Right",
document.right(), x, 0);
//Footer
float y = document.bottom(-20);
//左
cb.showTextAligned(PdfContentByte.ALIGN_LEFT,
"F-Left",
document.left(), y, 0);
//中
cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
writer.getPageNumber()+" page",
(document.right() + document.left())/2,
y, 0);
//右
cb.showTextAligned(PdfContentByte.ALIGN_RIGHT,
"F-Right",
document.right(), y, 0);
cb.endText();
cb.restoreState();
}
});
doc.open();
doc.add(new Paragraph("1 page"));
doc.newPage();
doc.add(new Paragraph("2 page"));
doc.newPage();
doc.add(new Paragraph("3 page"));
doc.newPage();
doc.add(new Paragraph("4 page"));
15、左右文字
PdfWriter writer = PdfWriter.getInstance(document, out);
document.open();
PdfContentByte canvas = writer.getDirectContent();
Phrase phrase1 = new Phrase("This is a test!left");
Phrase phrase2 = new Phrase("This is a test!right");
Phrase phrase3 = new Phrase("This is a test!center");
ColumnText.showTextAligned(canvas, Element.ALIGN_LEFT, phrase1, 10, 500, 0);
ColumnText.showTextAligned(canvas, Element.ALIGN_RIGHT, phrase2, 10, 536, 0);
ColumnText.showTextAligned(canvas, Element.ALIGN_CENTER, phrase3, 10, 572, 0);
16、幻灯片放映
PdfWriter writer = PdfWriter.getInstance(doc, out);
writer.setPdfVersion(PdfWriter.VERSION_1_5);
writer.setViewerPreferences(PdfWriter.PageModeFullScreen);//全屏
writer.setPageEvent(new PdfPageEventHelper() {
public void onStartPage(PdfWriter writer, Document document) {
writer.setTransition(new PdfTransition(PdfTransition.DISSOLVE, 3));
writer.setDuration(5);//间隔时间
}
});
doc.open();
doc.add(new Paragraph("1 page"));
doc.newPage();
doc.add(new Paragraph("2 page"));
doc.newPage();
doc.add(new Paragraph("3 page"));
doc.newPage();
doc.add(new Paragraph("4 page"));
doc.newPage();
doc.add(new Paragraph("5 page"));
17、压缩PDF到Zip
ZipOutputStream zip = new ZipOutputStream(new FileOutputStream(FILE_DIR + "zipPDF.zip"));
for (int i = 1; i <= 3; i++) {
ZipEntry entry = new ZipEntry("hello_" + i + ".pdf");
zip.putNextEntry(entry);
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, zip);
writer.setCloseStream(false);
document.open();
document.add(new Paragraph("Hello " + i));
document.close();
zip.closeEntry();
}
zip.close();
18、分割PDF
FileOutputStream out = new FileOutputStream(FILE_DIR + "splitPDF.pdf");
Document document = new Document();
PdfWriter.getInstance(document, out);
document.open();
document.add(new Paragraph("1 page"));
document.newPage();
document.add(new Paragraph("2 page"));
document.newPage();
document.add(new Paragraph("3 page"));
document.newPage();
document.add(new Paragraph("4 page"));
document.close();
PdfReader reader = new PdfReader(FILE_DIR + "splitPDF.pdf");
Document dd = new Document();
PdfWriter writer = PdfWriter.getInstance(dd, new FileOutputStream(FILE_DIR + "splitPDF1.pdf"));
dd.open();
PdfContentByte cb = writer.getDirectContent();
dd.newPage();
cb.addTemplate(writer.getImportedPage(reader, 1), 0, 0);
dd.newPage();
cb.addTemplate(writer.getImportedPage(reader, 2), 0, 0);
dd.close();
writer.close();
Document dd2 = new Document();
PdfWriter writer2 = PdfWriter.getInstance(dd2, new FileOutputStream(FILE_DIR + "splitPDF2.pdf"));
dd2.open();
PdfContentByte cb2 = writer2.getDirectContent();
dd2.newPage();
cb2.addTemplate(writer2.getImportedPage(reader, 3), 0, 0);
dd2.newPage();
cb2.addTemplate(writer2.getImportedPage(reader, 4), 0, 0);
dd2.close();
writer2.close();
19、合并PDF
PdfReader reader1 = new PdfReader(FILE_DIR + "splitPDF1.pdf");
PdfReader reader2 = new PdfReader(FILE_DIR + "splitPDF2.pdf");
FileOutputStream out = new FileOutputStream(FILE_DIR + "mergePDF.pdf");
Document document = new Document();
PdfWriter writer = PdfWriter.getInstance(document, out);
document.open();
PdfContentByte cb = writer.getDirectContent();
int totalPages = 0;
totalPages += reader1.getNumberOfPages();
totalPages += reader2.getNumberOfPages();
java.util.List<PdfReader> readers = new ArrayList<PdfReader>();
readers.add(reader1);
readers.add(reader2);
int pageOfCurrentReaderPDF = 0;
Iterator<PdfReader> iteratorPDFReader = readers.iterator();
// Loop through the PDF files and add to the output.
while (iteratorPDFReader.hasNext()) {
PdfReader pdfReader = iteratorPDFReader.next();
// Create a new page in the target for each source page.
while (pageOfCurrentReaderPDF < pdfReader.getNumberOfPages()) {
document.newPage();
pageOfCurrentReaderPDF++;
PdfImportedPage page = writer.getImportedPage(pdfReader, pageOfCurrentReaderPDF);
cb.addTemplate(page, 0, 0);
}
pageOfCurrentReaderPDF = 0;
}
out.flush();
document.close();
out.close();
20、Annotation
PdfWriter writer = PdfWriter.getInstance(doc, out);
writer.setLinearPageMode();
doc.open();
doc.add(new Paragraph("1 page"));
doc.add(new Annotation("Title", "This is a annotation!"));
doc.newPage();
doc.add(new Paragraph("2 page"));
Chunk chunk = new Chunk("\u00a0");
chunk.setAnnotation(PdfAnnotation.createText(writer, null, "Title", "This is a another annotation!", false, "Comment"));
doc.add(chunk);
//添加附件
doc.newPage();
doc.add(new Paragraph("3 page"));
Chunk chunk2 = new Chunk("\u00a0\u00a0");
PdfAnnotation annotation = PdfAnnotation.createFileAttachment(
writer, null, "Title", null,
"resource/test2.jpg",
"img.jpg");
annotation.put(PdfName.NAME,
new PdfString("Paperclip"));
chunk2.setAnnotation(annotation);
doc.add(chunk2);
21、插入一个Table
PdfPTable table = new PdfPTable(3);
PdfPCell cell;
cell = new PdfPCell(new Phrase("Cell with colspan 3"));
cell.setColspan(3);
table.addCell(cell);
cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
cell.setRowspan(2);
table.addCell(cell);
table.addCell("row 1; cell 1");
table.addCell("row 1; cell 2");
table.addCell("row 2; cell 1");
table.addCell("row 2; cell 2");
document.add(table);
22、表格嵌套
PdfPTable table = new PdfPTable(4);
//1行2列
PdfPTable nested1 = new PdfPTable(2);
nested1.addCell("1.1");
nested1.addCell("1.2");
//2行1列
PdfPTable nested2 = new PdfPTable(1);
nested2.addCell("2.1");
nested2.addCell("2.2");
//将表格插入到指定位置
for (int k = 0; k < 24; ++k) {
if (k == 1) {
table.addCell(nested1);
} else if (k == 20) {
table.addCell(nested2);
} else {
table.addCell("cell " + k);
}
}
document.add(table);
23、设置表格宽度
PdfPTable table = new PdfPTable(3);
PdfPCell cell;
cell = new PdfPCell(new Phrase("Cell with colspan 3"));
cell.setColspan(3);
table.addCell(cell);
cell = new PdfPCell(new Phrase("Cell with rowspan 2"));
cell.setRowspan(2);
table.addCell(cell);
table.addCell("row 1; cell 1");
table.addCell("row 1; cell 2");
table.addCell("row 2; cell 1");
table.addCell("row 2; cell 2");
//100%
table.setWidthPercentage(100);
document.add(table);
document.add(new Paragraph("\n\n"));
//宽度50% 居左
table.setHorizontalAlignment(Element.ALIGN_LEFT);
document.add(table);
document.add(new Paragraph("\n\n"));
//宽度50% 居中
table.setHorizontalAlignment(Element.ALIGN_CENTER);
document.add(table);
document.add(new Paragraph("\n\n"));
//宽度50% 居右
table.setWidthPercentage(50);
table.setHorizontalAlignment(Element.ALIGN_RIGHT);
document.add(table);
document.add(new Paragraph("\n\n"));
//固定宽度
table.setTotalWidth(300);
table.setLockedWidth(true);
document.add(table);
24、设置表格前后间隔
PdfPTable table = new PdfPTable(3);
PdfPCell cell = new PdfPCell(new Paragraph("合并3个单元格",fontZH));
cell.setColspan(3);
table.addCell(cell);
table.addCell("1.1");
table.addCell("2.1");
table.addCell("3.1");
table.addCell("1.2");
table.addCell("2.2");
table.addCell("3.2");
cell = new PdfPCell(new Paragraph("红色边框",fontZH));
cell.setBorderColor(new BaseColor(255, 0, 0));
table.addCell(cell);
cell = new PdfPCell(new Paragraph("合并单2个元格",fontZH));
cell.setColspan(2);
cell.setBackgroundColor(new BaseColor(0xC0, 0xC0, 0xC0));
table.addCell(cell);
table.setWidthPercentage(50);
document.add(new Paragraph("追加2个表格",fontZH));
document.add(table);
document.add(table);
document.newPage();
document.add(new Paragraph("使用‘SpacingBefore‘和‘setSpacingAfter‘",fontZH));
table.setSpacingBefore(15f);
document.add(table);
document.add(table);
document.add(new Paragraph("这里没有间隔",fontZH));
table.setSpacingAfter(15f);
25、设置单元格宽度
//按比例设置单元格宽度
float[] widths = {0.1f, 0.1f, 0.05f, 0.75f};
PdfPTable table = new PdfPTable(widths);
table.addCell("10%");
table.addCell("10%");
table.addCell("5%");
table.addCell("75%");
table.addCell("aa");
table.addCell("aa");
table.addCell("a");
table.addCell("aaaaaaaaaaaaaaa");
table.addCell("bb");
table.addCell("bb");
table.addCell("b");
table.addCell("bbbbbbbbbbbbbbb");
table.addCell("cc");
table.addCell("cc");
table.addCell("c");
table.addCell("ccccccccccccccc");
document.add(table);
document.add(new Paragraph("\n\n"));
//调整比例
widths[0] = 20f;
widths[1] = 20f;
widths[2] = 10f;
widths[3] = 50f;
table.setWidths(widths);
document.add(table);
//按绝对值设置单元格宽度
widths[0] = 40f;
widths[1] = 40f;
widths[2] = 20f;
widths[3] = 300f;
Rectangle r = new Rectangle(PageSize.A4.getRight(72), PageSize.A4.getTop(72));
table.setWidthPercentage(widths, r);
document.add(new Paragraph("\n\n"));
document.add(table);
26、设置单元格高度
PdfPTable table = new PdfPTable(2);
PdfPCell cell;
//折行
table.addCell(new PdfPCell(new Paragraph("折行", fontZH)));
cell = new PdfPCell(new Paragraph("blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah"));
cell.setNoWrap(false);
table.addCell(cell);
//不折行
table.addCell(new PdfPCell(new Paragraph("不折行", fontZH)));
cell.setNoWrap(true);
table.addCell(cell);
//设置高度
table.addCell(new PdfPCell(new Paragraph("任意高度",fontZH)));
cell = new PdfPCell(new Paragraph("1. blah blah\n2. blah blah blah\n3. blah blah\n4. blah blah blah\n5. blah blah\n6. blah blah blah\n7. blah blah\n8. blah blah blah"));
table.addCell(cell);
//固定高度
table.addCell(new PdfPCell(new Paragraph("固定高度",fontZH)));
cell.setFixedHeight(50f);
table.addCell(cell);
//最小高度
table.addCell(new PdfPCell(new Paragraph("最小高度",fontZH)));
cell = new PdfPCell(new Paragraph("最小高度：50",fontZH));
cell.setMinimumHeight(50f);
table.addCell(cell);
//最后一行拉长到page底部
table.setExtendLastRow(true);
table.addCell(new PdfPCell(new Paragraph("拉长最后一行",fontZH)));
cell = new PdfPCell(new Paragraph("最后一行拉长到page底部",fontZH));
table.addCell(cell);
document.add(table);
27、设置单元格颜色
PdfPTable table = new PdfPTable(4);
PdfPCell cell;
cell = new PdfPCell(new Paragraph("颜色测试",fontZH));
table.addCell(cell);
//红色背景，无边框
cell = new PdfPCell(new Paragraph("红色背景，无边框",fontZH));
cell.setBorder(Rectangle.NO_BORDER);
cell.setBackgroundColor(BaseColor.RED);
table.addCell(cell);
//绿色背景，下边框
cell = new PdfPCell(new Paragraph("绿色背景，下边框",fontZH));
cell.setBorder(Rectangle.BOTTOM);
cell.setBorderColorBottom(BaseColor.MAGENTA);
cell.setBorderWidthBottom(5f);
cell.setBackgroundColor(BaseColor.GREEN);
table.addCell(cell);
//蓝色背景，上边框
cell = new PdfPCell(new Paragraph("蓝色背景，上边框",fontZH));
cell.setBorder(Rectangle.TOP);
cell.setUseBorderPadding(true);
cell.setBorderWidthTop(5f);
cell.setBorderColorTop(BaseColor.CYAN);
cell.setBackgroundColor(BaseColor.BLUE);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("背景灰色度",fontZH));
table.addCell(cell);
cell = new PdfPCell(new Paragraph("0.25"));
cell.setBorder(Rectangle.NO_BORDER);
cell.setGrayFill(0.25f);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("0.5"));
cell.setBorder(Rectangle.NO_BORDER);
cell.setGrayFill(0.5f);
table.addCell(cell);
cell = new PdfPCell(new Paragraph("0.75"));
cell.setBorder(Rectangle.NO_BORDER);
cell.setGrayFill(0.75f);
table.addCell(cell);
document.add(table);
28、插入图像
Image image = Image.getInstance("resource/test2.jpg");
float[] widths = { 1f, 4f };
PdfPTable table = new PdfPTable(widths);
//插入图片
table.addCell(new PdfPCell(new Paragraph("图片测试", fontZH)));
table.addCell(image);
//调整图片大小
table.addCell("This two");
table.addCell(new PdfPCell(image, true));
//不调整
table.addCell("This three");
table.addCell(new PdfPCell(image, false));
document.add(table);
29、设置表头
String[] bogusData = { "M0065920", "SL", "FR86000P", "PCGOLD",
"119000", "96 06", "2001-08-13", "4350", "6011648299",
"FLFLMTGP", "153", "119000.00" };
int NumColumns = 12;
// 12
PdfPTable datatable = new PdfPTable(NumColumns);
int headerwidths[] = { 9, 4, 8, 10, 8, 11, 9, 7, 9, 10, 4, 10 }; // percentage
datatable.setWidths(headerwidths);
datatable.setWidthPercentage(100);
datatable.getDefaultCell().setPadding(3);
datatable.getDefaultCell().setBorderWidth(2);
datatable.getDefaultCell().setHorizontalAlignment(Element.ALIGN_CENTER);
datatable.addCell("Clock #");
datatable.addCell("Trans Type");
datatable.addCell("Cusip");
datatable.addCell("Long Name");
datatable.addCell("Quantity");
datatable.addCell("Fraction Price");
datatable.addCell("Settle Date");
datatable.addCell("Portfolio");
datatable.addCell("ADP Number");
datatable.addCell("Account ID");
datatable.addCell("Reg Rep ID");
datatable.addCell("Amt To Go ");
datatable.setHeaderRows(1);
//边框
datatable.getDefaultCell().setBorderWidth(1);
//背景色
for (int i = 1; i < 1000; i++) {
for (int x = 0; x < NumColumns; x++) {
datatable.addCell(bogusData[x]);
}
}
document.add(datatable);
30、分割表格
//横向分割
PdfContentByte cb = writer.getDirectContent();
PdfPTable table = new PdfPTable(10);
for (int k = 1; k <= 100; ++k) {
table.addCell("The number " + k);
}
table.setTotalWidth(400);
table.writeSelectedRows(0, 5, 0, -1, 5, 700, cb);
table.writeSelectedRows(5, -1, 0, -1, 210, 700, cb);
31、设置单元格留白
PdfPTable table = new PdfPTable(2);
PdfPCell cell;
Paragraph p = new Paragraph("Quick brown fox jumps over the lazy dog. Quick brown fox jumps over the lazy dog.");
table.addCell(new PdfPCell(new Paragraph("默认",fontZH)));
table.addCell(p);
table.addCell(new PdfPCell(new Paragraph("Padding：10",fontZH)));
cell = new PdfPCell(p);
cell.setPadding(10f);
table.addCell(cell);
table.addCell(new PdfPCell(new Paragraph("Padding：0",fontZH)));
cell = new PdfPCell(p);
cell.setPadding(0f);
table.addCell(cell);
table.addCell(new PdfPCell(new Paragraph("上Padding：0 左Padding：20",fontZH)));
cell = new PdfPCell(p);
cell.setPaddingTop(0f);
cell.setPaddingLeft(20f);
table.addCell(cell);
document.add(table);
document.newPage();
table = new PdfPTable(2);
table.addCell(new PdfPCell(new Paragraph("没有Leading",fontZH)));
table.getDefaultCell().setLeading(0f, 0f);
table.addCell("blah blah\nblah blah blah\nblah blah\nblah blah blah\nblah blah\nblah blah blah\nblah blah\nblah blah blah\n");
table.getDefaultCell().setLeading(14f, 0f);
table.addCell(new PdfPCell(new Paragraph("固定Leading：14pt",fontZH)));
table.addCell("blah blah\nblah blah blah\nblah blah\nblah blah blah\nblah blah\nblah blah blah\nblah blah\nblah blah blah\n");
table.addCell(new PdfPCell(new Paragraph("相对于字体",fontZH)));
table.getDefaultCell().setLeading(0f, 1.0f);
table.addCell("blah blah\nblah blah blah\nblah blah\nblah blah blah\nblah blah\nblah blah blah\nblah blah\nblah blah blah\n");
document.add(table);
32、设置单元格边框
//没有边框
PdfPTable table1 = new PdfPTable(3);
table1.getDefaultCell().setBorder(PdfPCell.NO_BORDER);
table1.addCell(new Paragraph("Cell 1"));
table1.addCell(new Paragraph("Cell 2"));
table1.addCell(new Paragraph("Cell 3"));
document.add(table1);
//边框粗细颜色
document.newPage();
Rectangle b1 = new Rectangle(0f, 0f);
b1.setBorderWidthLeft(6f);
b1.setBorderWidthBottom(5f);
b1.setBorderWidthRight(4f);
b1.setBorderWidthTop(2f);
b1.setBorderColorLeft(BaseColor.RED);
b1.setBorderColorBottom(BaseColor.ORANGE);
b1.setBorderColorRight(BaseColor.YELLOW);
b1.setBorderColorTop(BaseColor.GREEN);
PdfPTable table2 = new PdfPTable(1);
PdfPCell cell = new PdfPCell(new Paragraph("Cell 1"));
cell.cloneNonPositionParameters(b1);
table2.addCell(cell);
document.add(table2);
33、PdfPTableEvent
34、PdfPCellEvent
35、PdfPageEventHelper
36、生成Barcode QRCode
String myString = "http://www.google.com"; Barcode128 code128 = new Barcode128(); code128.setCode(myString.trim()); code128.setCodeType(Barcode128.CODE128); Image code128Image = code128.createImageWithBarcode(cb, null, null); code128Image.setAbsolutePosition(10,700); code128Image.scalePercent(125); doc.add(code128Image); BarcodeQRCode qrcode = new BarcodeQRCode(myString.trim(), 1, 1, null); Image qrcodeImage = qrcode.getImage(); qrcodeImage.setAbsolutePosition(10,600); qrcodeImage.scalePercent(200); doc.add(qrcodeImage);
37、HTML to PDF
Document document = new Document(PageSize.LETTER);
PdfWriter.getInstance(document, new FileOutputStream("c://testpdf1.pdf"));
document.open();
HTMLWorker htmlWorker = new HTMLWorker(document);
htmlWorker.parse(new StringReader("<h1>This is a test!</h1>"));
document.close();
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