1 配置pom文件
我用的是5.4.3的版本
<dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.4.3</version></dependency>
2 合并PDF代码
/*** @author Reverse_XML* 将多个PDF合并成一个PDF* @param files 源PDF路径* @param outputPath 合并后输出的PDF路径* @param outputFileName 合并后输出的PDF文件名*/public static void mergePDF(String[] files, String outputPath, String outputFileName) {String sep = java.io.File.separator;Document document = null;PdfCopy copy = null;PdfReader reader = null;try {document = new Document(new PdfReader(files[0]).getPageSize(1));copy = new PdfCopy(document, new FileOutputStream(outputPath + sep +outputFileName));document.open();for (int i = 0; i < files.length; i++) {reader = new PdfReader(files[i]);int numberOfPages = reader.getNumberOfPages();for (int j = 1; j <= numberOfPages; j++) {document.newPage();PdfImportedPage page = copy.getImportedPage(reader, j);copy.addPage(page);}}} catch (IOException e) {log.error(e.getMessage(), e);} catch (DocumentException e) {log.error(e.getMessage(), e);} finally {if (document != null)document.close();if (reader != null)reader.close();if (copy != null)copy.close();}}
3 调用示例
将test1.pdf 和 test2.pdf 合并成一个merge.pdf
public static void main(String[] args) {String[] files = {"D:\\inputPath\\test1.pdf", "D:\\inputPath\\test2.pdf"};String outputPath= "D:\\outputPath";String outputFileName ="merge.pdf";try {PDFUtils.mergePDF(files,outputPath,outputFileName);} catch (Exception e) {log.error(e.getMessage(), e);}}
4 官网
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