失眠网 > itext5 创建pdf 含表格内容并添加水印（文字水印和图片水印）

itext5 创建pdf 含表格内容并添加水印（文字水印和图片水印）

时间：2023-08-02 16:06:58

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1.jar包依赖：

<dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.13</version></dependency><dependency><groupId>com.itextpdf</groupId><artifactId>itext-asian</artifactId><version>5.2.0</version></dependency>

2.生成pdf思路：

itextpdf 做pdf整体思路与我们平时用office写word其实是一样的，首先创建一个pdf对象，然后可以设置页面大小、宽度、方向、背景等信息；然后就是内容 Title subTitle content。。。但是这里注意一点：itext做表格和我们平时做表格并不一样，它是以每一个小格子（cell）为对象，通过设置每一个格子来设置table的展示；

3.代码实现：

package com.home.pdfdemo;import java.io.File;import java.io.FileOutputStream;import com.itextpdf.text.BaseColor;import com.itextpdf.text.Document;import com.itextpdf.text.Element;import com.itextpdf.text.Font;import com.itextpdf.text.Image;import com.itextpdf.text.PageSize;import com.itextpdf.text.Paragraph;import com.itextpdf.text.Phrase;import com.itextpdf.text.pdf.BaseFont;import com.itextpdf.text.pdf.PdfContentByte;import com.itextpdf.text.pdf.PdfGState;import com.itextpdf.text.pdf.PdfPCell;import com.itextpdf.text.pdf.PdfPTable;import com.itextpdf.text.pdf.PdfReader;import com.itextpdf.text.pdf.PdfStamper;import com.itextpdf.text.pdf.PdfWriter;/*** * * Description: 审核意见生成pdf工具类 * 注意：此工具类生成pdf支持中文，故需要系统含有宋体（SIMSUM.ttc）字体 * * * * * @author Mr_yao**/public class ItextPdfUtil {private static final String WINDOWS_FILEPATH = "D:\\";private static final String LINUX_FILEPATH = "/usr/weaver/ecology/loyo/biddingContract/opinionPdf/";// 宋体（对应css中的属性 font-family: SimSun; /*宋体*/）private static final String WINDOWS_FONTS = "C:\\Windows\\Fonts\\SIMSUN.TTC";private static final String LINUX_FONTS = "/usr/share/fonts/SIMSUN.TTC";private static final BaseColor BORDER_COLOR = new BaseColor(240, 255, 255);private static final BaseColor HCELL_BACKGROUNDCOLOR = new BaseColor(111, 168, 220);// 175, 238, 238private static final BaseColor BCELL_NAME_COLOR = new BaseColor(65, 105, 225);// 72, 209, 204private static final BaseColor BCELL_OPINION_BACKGROUNDCOLOR = new BaseColor(220, 220, 220);private static final float TABLE_BORDER_WIDTH = 0.5f;public static void createPDF() {// SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");Document document = new Document(PageSize.A4, 0, 0, 50, 0);try {BaseFont bf = BaseFont.createFont(getChineseFont() + ",1", BaseFont.IDENTITY_H, BaseFont.NOT_EMBEDDED);// 注意这里有一个,1Font titleFont = new Font(bf, 15, Font.BOLD);Font subTitleFont = new Font(bf, 10, Font.NORMAL);Font tableFont = new Font(bf, 13, Font.NORMAL);PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(getFilePath() + "first.pdf"));// file.getParentFile().mkdirs();document.addTitle("***审批意见");document.addCreationDate();document.open();Paragraph title = new Paragraph("***审批意见", titleFont);title.setAlignment(Element.ALIGN_CENTER);Paragraph subTitle = new Paragraph("组建工作组\n\n\n", subTitleFont);subTitle.setAlignment(Element.ALIGN_CENTER);document.add(title);document.add(subTitle);document.add(createTable(tableFont));document.close();writer.close();} catch (Exception e) {e.printStackTrace();}}public static PdfPTable createTable(Font font) throws Exception {PdfPTable table = new PdfPTable(6);// 创建一个有6列的表格createTHead(table, font);createTBody(table, font);return table;}public static void createTHead(PdfPTable table, Font font) throws Exception {table.addCell(getHCell("姓名", font));table.addCell(getHCell("部门", font));table.addCell(getHCell("意见", font));table.addCell(getHCell("接收人", font));table.addCell(getHCell("审批时间", font));table.addCell(getHCell("审批节点", font));}public static PdfPCell getHCell(String name, Font font) {PdfPCell cell = new PdfPCell(new Phrase((name), font));cell.setBorderColor(BORDER_COLOR);cell.setBackgroundColor(HCELL_BACKGROUNDCOLOR);cell.setBorderWidthTop(TABLE_BORDER_WIDTH);cell.setBorderWidthBottom(TABLE_BORDER_WIDTH);cell.setBorderWidthLeft(TABLE_BORDER_WIDTH);cell.setBorderWidthRight(TABLE_BORDER_WIDTH);return cell;}public static void createTBody(PdfPTable table, Font font) {Font nameFont = new Font(font);nameFont.setColor(BCELL_NAME_COLOR);for (int i = 0; i < 5; i++) {PdfPCell cell = new PdfPCell(new Phrase("张三", nameFont));cell.setBorderWidth(TABLE_BORDER_WIDTH);cell.setBorderColor(BORDER_COLOR);table.addCell(cell);table.addCell(getBCommonCell("管理部", font));table.addCell(getBOpinionCell("同意", font));table.addCell(getBCommonCell("张三", font));table.addCell(getBCommonCell("-09-17 12:00:00", font));table.addCell(getBCommonCell("A", font));}}public static PdfPCell getBCommonCell(String value, Font font) {PdfPCell cell = new PdfPCell(new Phrase(value, font));cell.setBorderColor(BORDER_COLOR);cell.setBorderWidthTop(TABLE_BORDER_WIDTH);cell.setBorderWidthBottom(TABLE_BORDER_WIDTH);cell.setBorderWidthLeft(TABLE_BORDER_WIDTH);cell.setBorderWidthRight(TABLE_BORDER_WIDTH);return cell;}public static PdfPCell getBOpinionCell(String value, Font font) {PdfPCell cell = new PdfPCell(new Phrase(value, font));cell.setBackgroundColor(BCELL_OPINION_BACKGROUNDCOLOR);cell.setBorderColor(BORDER_COLOR);cell.setBorderWidthTop(TABLE_BORDER_WIDTH);cell.setBorderWidthBottom(TABLE_BORDER_WIDTH);cell.setBorderWidthLeft(TABLE_BORDER_WIDTH);cell.setBorderWidthRight(TABLE_BORDER_WIDTH);return cell;}/*** * * * Description: 获取中文字体位置 * * * * * @return String 系统字体位置*/private static String getChineseFont() {String font1 = WINDOWS_FONTS;// 判断系统类型，加载字体文件String osName = getOsName();if (osName.indexOf("linux") > -1) {font1 = LINUX_FONTS;}if (!new File(font1).exists()) {throw new RuntimeException("字体文件不存在,影响导出pdf中文显示！" + font1);}return font1;}/*** * * * Description: 根据系统类型自动选择文件路径 * * * * * @return*/public static String getFilePath() {String osName = getOsName();if (osName.indexOf("linux") > -1) {return LINUX_FILEPATH;} else {return WINDOWS_FILEPATH;}}/*** * * * Description: 获取系统类型名 * * * * * @return*/public static String getOsName() {java.util.Properties prop = System.getProperties();return prop.getProperty("os.name").toLowerCase();}/*** * * * Description: 给pdf文件添加水印 * * * * * @param InPdfFile* 要加水印的原pdf文件路径* @param outPdfFile* 加了水印后要输出的路径* @param markImagePath* 水印图片路径* @param imgWidth* 图片横坐标* @param imgHeight* 图片纵坐标* @throws Exception* @see void*/public static void addPdfImgMark(String InPdfFile, String outPdfFile, String markImagePath, int imgWidth,int imgHeight) throws Exception {PdfReader reader = new PdfReader(InPdfFile, "PDF".getBytes());PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(new File(outPdfFile)));PdfContentByte under;PdfGState gs1 = new PdfGState();gs1.setFillOpacity(0.3f);// 透明度设置Image img = Image.getInstance(markImagePath);// 插入图片水印img.setAbsolutePosition(imgWidth, imgHeight); // 坐标img.setRotation(-20);// 旋转弧度img.setRotationDegrees(45);// 旋转角度img.scaleAbsolute(700, 80);// 自定义大小// img.scalePercent(50);//依照比例缩放int pageSize = reader.getNumberOfPages();// 原pdf文件的总页数for (int i = 1; i <= pageSize; i++) {under = stamp.getUnderContent(i);// 水印在之前文本下// under = stamp.getOverContent(i);//水印在之前文本上under.setGState(gs1);// 图片水印透明度under.addImage(img);// 图片水印}stamp.close();// 关闭}/*** * * * Description: 给pdf文件添加水印 * * @param InPdfFile* 要加水印的原pdf文件路径* @param outPdfFile* 加了水印后要输出的路径* @param textMark* 水印文字* @param textWidth* 文字横坐标* @param textHeight* 文字纵坐标* @throws Exception* @see void*/public static void addPdfTextMark(String InPdfFile, String outPdfFile, String textMark, int textWidth,int textHeight) throws Exception {PdfReader reader = new PdfReader(InPdfFile, "PDF".getBytes());PdfStamper stamp = new PdfStamper(reader, new FileOutputStream(new File(outPdfFile)));PdfContentByte under;BaseFont font = BaseFont.createFont("C:/WINDOWS/Fonts/SIMSUN.TTC,1", "Identity-H", true);// 使用系统字体int pageSize = reader.getNumberOfPages();// 原pdf文件的总页数for (int i = 1; i <= pageSize; i++) {under = stamp.getUnderContent(i);// 水印在之前文本下// under = stamp.getOverContent(i);//水印在之前文本上under.beginText();under.setColorFill(new BaseColor(211,211,211));// 文字水印颜色under.setFontAndSize(font, 38);// 文字水印字体及字号under.setTextMatrix(textWidth, textHeight);// 文字水印起始位置under.showTextAligned(Element.ALIGN_CENTER, textMark, textWidth, textHeight, 45);under.endText();}stamp.close();// 关闭}public static void main(String[] args) {// createPDF();try {//addPdfImgMark("d:\\first.pdf", "d:\\first-photo.pdf", "d:\\first.jpg", 0, 100);addPdfTextMark("d:\\first.pdf","d:\\first-text.pdf","***审批意见",300,400);} catch (Exception e) {e.printStackTrace();}}}

4.整体效果如下：

4.1不加水印

4.2添加图片水印

4.3：添加文字水印

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