添加maven依赖
这个连接
通过 Maven 仓库安装 Spire 系列 Java 产品
import com.spire.pdf.PdfDocument;import com.spire.pdf.automaticfields.PdfCompositeField;import com.spire.pdf.automaticfields.PdfPageCountField;import com.spire.pdf.automaticfields.PdfPageNumberField;import com.spire.pdf.graphics.*;import java.awt.*;import java.awt.geom.Dimension2D;import java.awt.geom.Rectangle2D;public class HeaderFooterUtils {public static void main(String[] args) {//创建pdfDocument对象，并加载PDF文档PdfDocument doc = new PdfDocument();doc.loadFromFile("C:\\Users\\long\\Desktop\\ceshi.pdf");//删除有红色字体的一页: Evaluation Warning : The document was created with Spire.PDF for Java.doc.getPages().add();doc.getPages().remove(doc.getPages().get(doc.getPages().getCount() - 1));//添加页眉//drawHeader(doc);//添加页脚drawFooter(doc);//保存文档doc.saveToFile("C:\\Users\\long\\Desktop\\result.pdf");}//添加页眉public static void drawHeader(PdfDocument doc) {//获取页面尺寸Dimension2D pageSize = doc.getPages().get(0).getSize();//定义两个float变量float x = 90;float y = 20;for (int i = 0; i < doc.getPages().getCount(); i++) {//添加图片到指定位置PdfImage headerImage = PdfImage.fromFile("C:\\Users\\long\\Desktop\\logo.png");float width = headerImage.getWidth() / 2;float height = headerImage.getHeight() / 2;doc.getPages().get(i).getCanvas().drawImage(headerImage, x, y, width, height);//添加横线至图片下PdfPen pen = new PdfPen(PdfBrushes.getGray(), 0.5f);doc.getPages().get(i).getCanvas().drawLine(pen, x, y + height + 1, pageSize.getWidth() - x, y + height + 1);}}//添加页脚public static void drawFooter(PdfDocument doc) {//获取页面大小Dimension2D pageSize = doc.getPages().get(0).getSize();//定义两个float变量float x = 90;float y = (float) pageSize.getHeight() - 72;for (int i = 0; i < doc.getPages().getCount(); i++) {//添加横线到指定位置PdfPen pen = new PdfPen(PdfBrushes.getGray(), 0.5f);doc.getPages().get(i).getCanvas().drawLine(pen, x, y, pageSize.getWidth() - x, y);//添加文本到页脚处PdfTrueTypeFont font = new PdfTrueTypeFont(new Font("黑体", Font.PLAIN, 8), true);////PdfStringFormat format = new PdfStringFormat(PdfTextAlignment.Left);//String footerText = "这里可以在页脚添加自己想要添加的内容";//doc.getPages().get(i).getCanvas().drawString(footerText, font, PdfBrushes.getBlack(), x, y, format);//添加页码PdfPageNumberField number = new PdfPageNumberField();PdfPageCountField count = new PdfPageCountField();PdfCompositeField compositeField = new PdfCompositeField(font, PdfBrushes.getBlack(), "第{0}页 共{1}页", number, count);compositeField.setStringFormat(new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Top));Dimension2D fontSize = font.measureString(compositeField.getText());compositeField.setBounds(new Rectangle2D.Float((float) (pageSize.getWidth() - x - fontSize.getWidth()), y, (float) fontSize.getWidth(), (float) fontSize.getHeight()));compositeField.draw(doc.getPages().get(i).getCanvas());}}}
只是这个执行效率极低，提供一个思路去解决这个问题，就是利用多线程，分页处理（比如定义一个页码节点，满足多少页就开一个线程来处理）
请参考我另一篇博客
Java给pdf添加页码（这是我之前的一篇文章）_007龙的博客-CSDN博客
