java将doc文件转pdf

将doc文件转为pdf

itextpdf+poi 方案，针对doc文件，非docx
缺点，不支持负责的格式，不支持图标，图片等。

需要的依赖

  <!-- https://mvnrepository.com/artifact/com.itextpdf/itextpdf --><dependency><groupId>com.itextpdf</groupId><artifactId>itextpdf</artifactId><version>5.5.13.3</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml --><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>4.1.2</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml-schemas --><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml-schemas</artifactId><version>4.1.2</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>ooxml-schemas</artifactId><version>1.1</version></dependency><!-- https://mvnrepository.com/artifact/org.apache.poi/poi-scratchpad --><dependency><groupId>org.apache.poi</groupId><artifactId>poi-scratchpad</artifactId><version>4.1.2</version></dependency>

java代码

import com.google.common.io.Files;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Font;
import com.itextpdf.text.Paragraph;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.PdfWriter;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.hwpf.HWPFDocument;
import org.apache.poi.hwpf.extractor.WordExtractor;import java.io.*;/*** @Description 将doc文件转换为pdf*/
@Slf4j
public class DocToPdfUtil {public static void toPdf(File orgFile, String outputFile) throws IOException {File file = new File(outputFile);try {ByteArrayOutputStream outputStream = toPdf(orgFile);Files.write(outputStream.toByteArray(), new File(outputFile));} catch (Exception e) {e.printStackTrace();}}public static ByteArrayOutputStream toPdf(File file) throws IOException, DocumentException {Document pdfDoc = null;WordExtractor extractor = null;try {// 读取DOC文件HWPFDocument doc = new HWPFDocument(new FileInputStream(file));extractor = new WordExtractor(doc);ByteArrayOutputStream outputStream = new ByteArrayOutputStream();// 创建PDF文档pdfDoc = new Document();PdfWriter.getInstance(pdfDoc, outputStream);pdfDoc.open();// 写入内容String[] paragraphs = extractor.getParagraphText();// 加载中文字体BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.EMBEDDED);Font font = new Font(baseFont, 12);for (String text : paragraphs) {Paragraph p = new Paragraph(text, font);pdfDoc.add(p);}log.info("==========doc转换pdf成功===============" + file.getAbsolutePath());return outputStream;} catch (Exception e) {log.info("==========doc转换pdf失败===============" + file.getAbsolutePath());e.printStackTrace();throw e;} finally {// 关闭资源if (null != pdfDoc) {pdfDoc.close();}if (null != extractor) {extractor.close();}}}
}

测试用例

 DocToPdfUtil.toPdf(new File("C:\\mydoc\\明朝那点事.doc"), "C:\\mydoc\\明朝那点事" + System.currentTimeMillis() + ".pdf");

遇到的问题

转换的文件不显示中文

原因：字体问题，请设置字体。

// 加载中文字体BaseFont baseFont = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.EMBEDDED);Font font = new Font(baseFont, 12);