Java操作PDF之iText

阿新 • • 發佈：2019-01-04

Text是著名的開放專案，是用於生成PDF文件的一個java類庫。通過iText不僅可以生成PDF或rtf的文件，而且可以將XML、Html檔案轉化為PDF檔案。

http://itextpdf.com/

版本：itextpdf-5.2.1.jar

1、生成一個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、頁面大小,頁面背景色,頁邊空白,Title,Author,Subject,Keywords

//頁面大小
Rectangle rect = new Rectangle(PageSize.B5.rotate());
//頁面背景色
rect.setBackgroundColor(BaseColor.ORANGE);

Document doc = new Document(rect);

PdfWriter writer = PdfWriter.getInstance(doc, out);

//PDF版本(預設1.4)
writer.setPdfVersion(PdfWriter.PDF_VERSION_1_2);

//文件屬性
doc.addTitle(" 
[email protected]");
doc.addAuthor("[email protected]");
doc.addSubject("[email protected] sample");
doc.addKeywords("[email protected]");
doc.addCreator("[email protected]");

//頁邊空白
doc.setMargins(10, 20, 30, 40);

doc.open();
doc.add(new Paragraph("Hello World"));

3、設定密碼

PdfWriter writer = PdfWriter.getInstance(doc, out);

// 設定密碼為："World"
writer.setEncryption("Hello".getBytes(), "World".getBytes(),
        PdfWriter.ALLOW_SCREENREADERS,
        PdfWriter.STANDARD_ENCRYPTION_128);

doc.open();
doc.add(new Paragraph("Hello World"));

4、新增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、新增水印(背景圖)

//圖片水印
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();

//背景圖
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物件: 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物件: 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物件: 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物件: 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物件: 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物件
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);//旋轉
document.add(img);

//Chapter, Section物件（目錄）
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、畫圖

//左右箭頭
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();
    }
});

//直線
Paragraph p1 = new Paragraph("LEFT");
p1.add(new Chunk(new LineSeparator()));
p1.add("R");
document.add(p1);
//點線
Paragraph p2 = new Paragraph("LEFT");
p2.add(new Chunk(new DottedLineSeparator()));
p2.add("R");
document.add(p2);
//下滑線
LineSeparator UNDERLINE = new LineSeparator(1, 100, null, Element.ALIGN_CENTER, -2);
Paragraph p3 = new Paragraph("NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN");
p3.add(UNDERLINE);
document.add(p3);

9、設定段落

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.");

//預設
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、刪除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、目錄

// 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、幻燈片放映

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);//間隔時間
    }
});

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、壓縮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、合併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);

//新增附件
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、插入一個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、表格巢狀

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");

//將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、設定表格寬度

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"));

//寬度50% 居左
table.setHorizontalAlignment(Element.ALIGN_LEFT);
document.add(table);
document.add(new Paragraph("\n\n"));

//寬度50% 居中
table.setHorizontalAlignment(Element.ALIGN_CENTER);
document.add(table);
document.add(new Paragraph("\n\n"));

//寬度50% 居右
table.setWidthPercentage(50);
table.setHorizontalAlignment(Element.ALIGN_RIGHT);
document.add(table);
document.add(new Paragraph("\n\n"));

//固定寬度
table.setTotalWidth(300);
table.setLockedWidth(true);
document.add(table);

24、設定表格前後間隔

PdfPTable table = new PdfPTable(3);
PdfPCell cell = new PdfPCell(new Paragraph("合併3個單元格",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("紅色邊框",fontZH));
cell.setBorderColor(new BaseColor(255, 0, 0));
table.addCell(cell);

cell = new PdfPCell(new Paragraph("合併單2個元格",fontZH));
cell.setColspan(2);
cell.setBackgroundColor(new BaseColor(0xC0, 0xC0, 0xC0));
table.addCell(cell);

table.setWidthPercentage(50);

document.add(new Paragraph("追加2個表格",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("這裡沒有間隔",fontZH));
table.setSpacingAfter(15f);

25、設定單元格寬度

//按比例設定單元格寬度
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"));

//調整比例
widths[0] = 20f;
widths[1] = 20f;
widths[2] = 10f;
widths[3] = 50f;
table.setWidths(widths);
document.add(table);

//按絕對值設定單元格寬度
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、設定單元格高度

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);

//設定高度
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);

//最後一行拉長到page底部
table.setExtendLastRow(true);
table.addCell(new PdfPCell(new Paragraph("拉長最後一行",fontZH)));
cell = new PdfPCell(new Paragraph("最後一行拉長到page底部",fontZH));
table.addCell(cell);

document.add(table);

27、設定單元格顏色

PdfPTable table = new PdfPTable(4);
PdfPCell cell;
cell = new PdfPCell(new Paragraph("顏色測試",fontZH));
table.addCell(cell);

//紅色背景，無邊框
cell = new PdfPCell(new Paragraph("紅色背景，無邊框",fontZH));
cell.setBorder(Rectangle.NO_BORDER);
cell.setBackgroundColor(BaseColor.RED);
table.addCell(cell);

//綠色背景，下邊框
cell = new PdfPCell(new Paragraph("綠色背景，下邊框",fontZH));
cell.setBorder(Rectangle.BOTTOM);
cell.setBorderColorBottom(BaseColor.MAGENTA);
cell.setBorderWidthBottom(5f);
cell.setBackgroundColor(BaseColor.GREEN);
table.addCell(cell);

//藍色背景，上邊框
cell = new PdfPCell(new Paragraph("藍色背景，上邊框",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、插入影象

Image image = Image.getInstance("resource/test2.jpg");
float[] widths = { 1f, 4f };

PdfPTable table = new PdfPTable(widths);

//插入圖片
table.addCell(new PdfPCell(new Paragraph("圖片測試", fontZH)));
table.addCell(image);

//調整圖片大小
table.addCell("This two");
table.addCell(new PdfPCell(image, true));

//不調整
table.addCell("This three");
table.addCell(new PdfPCell(image, false));
document.add(table);

29、設定表頭

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);

//邊框
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

//橫向分割
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、設定單元格留白

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("預設",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("沒有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("相對於字型",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、設定單元格邊框

//沒有邊框
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);

//邊框粗細顏色
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();

轉發自：https://www.cnblogs.com/sunny3096/p/7201761.html

Java操作PDF之iText超入門

tom stream [] win anti not tsp rowspan war iText是著名的開放項目，是用於生成PDF文檔的一個java類庫。通過iText不僅可以生成PDF或rtf的文檔，而且可以將XML、Html文件轉化為PDF文件。 http://ite

Java操作PDF之iText

Text是著名的開放專案，是用於生成PDF文件的一個java類庫。通過iText不僅可以生成PDF或rtf的文件，而且可以將XML、Html檔案轉化為PDF檔案。 http://itextpdf.com/ 版本：itextpdf-5.2.1.jar 1、生成一個PDF

Java操作PDF之iText詳細入門

iText是著名的開放專案，是用於生成PDF文件的一個java類庫。通過iText不僅可以生成PDF或rtf的文件，而且可以將XML、Html檔案轉化為PDF檔案。 http://itextpdf.com/ 版本：itextpdf-5.2.1.jar

java操作PDF檔案 -- iText

iText是一種生成PDF報表的Java元件，通過iText不僅可以生成pdf檔案，而且可以將xml、html檔案轉換為pdf檔案。生成PDF檔案 //Step 1—Create a Document. Document document = new Document();

java 操作pdf 不能顯示itext生成的PDF檔案文字域內容問題

問題：java 操作pdf 填入資料後，生成新pdf無法顯示中文。 ......... try { PdfReader reader = new PdfReader(path);//讀模板檔案 PdfStamper stamper = new PdfSt

Java操作Excel之POI簡單例子

comm last pre cto ada tabs cnblogs encrypted hssf 21 /** 22 * 利用POI操作Excel表單 23 * 24 * 需要jar包： 25 * HSSF針對03及以前版本，即.xls後綴

Java生成PDF之iTextPDF的使用

tde context work tput not 使用 reat instance exp 　　今天做財務方面相關數據的導出功能，需要導出PDF和Excel，在項目經理那裏得知有一個叫iTextPDF的java框架導出PDF文件很好用，於是拿來玩兒玩兒。 1 pack

java操作JDBC之Oracle工具類

/** * JDBC之Oracle工具類 * * @author： Rodge * @time： 2018年10月4日下午4:06:15 * @version： V1.0.0 */ public class JDBCUtilForOracle { private static fi

java操作JDBC之MySQL工具類

/** * JDBC之MySQL工具類 * * @author： Rodge * @time： 2018年10月4日下午4:03:42 * @version： V1.0.0 */ public class JDBCUtilForMySQL { private static fin

java操作pdf——擴充套件功能實現

正經學徒，佛系記錄，不搞事情基於上一個專案：https://blog.csdn.net/qq_31748587/article/details/84550356 新增的提供的方法：圖片轉pdf 讀取pdf文字 pdf轉圖片批量pdf合成一份pdf並生成目

java操作pdf——基礎功能實現

正經學徒，佛系記錄，不搞事情 itextpdf 是java用於操作pdf檔案的工具，速度極快，目前測試上千頁的pdf檔案都不在話下下面編寫的工具類，可看作是將pdf檔案轉成類似list的集合，通過對list的CURD操作，最終生成一個新的list集合，即生成一個新的pdf檔案提供

java操作mongodb之insert

一：環境搭建環境搭建程式碼（SSM+mongdb)點選開啟連結二：基礎知識1， document巢狀document是一種理解Mongodb的一種方式。2，在一個document中的field，可以持有更多引用物件。3, colle

java操作mongoDB之增刪改查

需要mongodb的驅動jar（mongo-java-driver-3.2.0.jar） package mongodb; import java.net.UnknownHostException; import java.util.Date; import co

java操作mongodb之update

一：環境搭建環境搭建程式碼（SSM+mongdb）點選開啟連結二：根據_id跟新collection中存在的欄位。 1，寫法 _id，及值是存在的。field orderDate也是存在的。2，test3

Java編輯PDF 使用iText

只放一些連結 1. 【PDF】java使用Itext生成pdf文件--詳解 - ssslinppp - 部落格園最推薦. 詳細解釋了iText中的各種概念. 我認為有價值的功能 PDF的4層結構新增文字到絕對位置使用模板：用Acrobat生成一

Java操作ElasticSearch之建立索引

ElasticSearch客戶端提供了多種方式的資料建立方式，包括json串,map,內建工具；我們正式開始一般用json格式，藉助json工具框架，比如gson ,json-lib,fastjson等等；我們給下例項： 1 2

java操作資料庫之模糊查詢

首先，在接口裡新增模糊查詢的方法，程式碼如下： ---------------------------------程式碼開始---------------------------------- package com.dao; import java.util.List; import

com4j學習（1）：Java操作Visio之Java讀取Visio圖形關係並存儲到XML檔案中

前言： MicroSoft Visio是微軟旗下一款非常非常出色的繪圖軟體，可以用來繪製各種各樣的圖形（如流程圖、UML、工程圖等）。現在有這樣一個需求，我們想讀取visio中的圖形的形狀、屬性、連線關係等到程式中（java、c++、python都行），這樣我

Java操作資料庫之jdbc【原生方式】

引言：Java對資料庫的操作有很多種技術。例如說jdbc，dbutil +C3p0，hibernate,jdbcTemplate等等【這五個都會總結】，到後面的話使用一些高階的框架去操作資料庫，

java操作Excel之jxl----簡單上手

先建立一個Excel: package com.kk.jxl; import java.awt.Color; import java.io.File; import java.io.IOException; import java.util.Linked

Java操作PDF之iText

相關推薦