一、实现方式
java采用jacob包的功能,把ppt演示文稿转换为pdf。
支持文件格式:pptx,ppt
二、事先准备
1、依赖于office,需安装office办公软件
2、需要下载一个 jacob-1.20-x64.dll的文件,放到java的bin目录下。
文件可以网上搜索下载。也可以点击百度网盘下载链接:
https://pan.baidu.com/s/16y-N03KPQJkne6g4sMLAmg?pwd=ix4j
三、Java转换代码
1、maven包依赖:
XML
<dependency>
<groupId>com.jacob</groupId>
<artifactId>jacob</artifactId>
<version>1.20</version>
</dependency>
2、java转换类:JacobUtil.java
主要看ppt2PDF方法。
java
package com.lan.fts.util;
import com.jacob.activeX.ActiveXComponent;
import com.jacob.com.ComThread;
import com.jacob.com.Dispatch;
import com.jacob.com.Variant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* excel word ppt转pdf
* 未完全完善
* @author LAN
* @date 2021年07月01日
*/
public class JacobUtil {
private static Logger log = LoggerFactory.getLogger(JacobUtil.class);
private static final Integer WORD_TO_PDF_OPERAND = 17;
private static final Integer PPT_TO_PDF_OPERAND = 32;
private static final Integer EXCEL_TO_PDF_OPERAND = 0;
public static void word2PDF(String inputFile, String pdfFile) {
ComThread.InitSTA();
ActiveXComponent app = new ActiveXComponent("Word.Application");
try {
app.setProperty("Visible", false);
Dispatch docs = app.getProperty("Documents").toDispatch();
Dispatch doc = Dispatch.call(docs, "Open", new Object[]{inputFile, false, true}).toDispatch();
Dispatch.call(doc, "ExportAsFixedFormat", new Object[]{pdfFile, WORD_TO_PDF_OPERAND});
Dispatch.call(doc, "Close", new Object[]{false});
} catch (Exception e) {
e.printStackTrace();
System.out.println("转换出错:" + pdfFile);
} finally {
app.invoke("Quit");
ComThread.Release();
}
}
public static void excel2PDF(String inputFile, String pdfFile) {
ComThread.InitSTA(true);
ActiveXComponent app = new ActiveXComponent("Excel.Application");
try {
app.setProperty("Visible", false);
app.setProperty("AutomationSecurity", new Variant(3));// 禁用宏
Dispatch excels = app.getProperty("Workbooks").toDispatch();
Object[] param1 = new Object[]{inputFile, new Variant(false), new Variant(false)};
Dispatch excel = Dispatch.invoke(excels, "Open", Dispatch.Method, param1, new int[9]).toDispatch();
//转换
Object[] param2 = new Object[]{
new Variant(EXCEL_TO_PDF_OPERAND), // PDF格式=0
pdfFile,
new Variant(0) //0=标准 (生成的PDF图片不会变模糊) ; 1=最小文件
};
Dispatch.invoke(excel, "ExportAsFixedFormat", Dispatch.Method, param2, new int[1]);
//关闭
Dispatch.call(excel, "Close", new Object[]{false});
} catch (Exception e) {
e.printStackTrace();
System.out.println("转换出错:" + pdfFile);
} finally {
app.invoke("Quit");
ComThread.Release();
}
}
private static ActiveXComponent ppt_app = new ActiveXComponent("PowerPoint.Application");
public static void ppt2PDF(String inputFile, String pdfFile) {
// ComThread.InitSTA();
Dispatch ppts = ppt_app.getProperty("Presentations").toDispatch();
try {
/**
* call
* param 4: ReadOnly
* param 5: Untitled指定文件是否有标题
* param 6: WithWindow指定文件是否可见
* */
Dispatch ppt = Dispatch.call(ppts, "Open", new Object[]{inputFile, true, true, false}).toDispatch();
Dispatch.call(ppt, "SaveAs", new Object[]{pdfFile, PPT_TO_PDF_OPERAND});
//关闭
Dispatch.call(ppt, "Close");
} catch (Exception e) {
log.error("转换出错:" + inputFile, e);
try{
ppt_app.invoke("Quit");
}catch (Exception e1){
log.error("ppt_app.invoke(\"Quit\")关闭出错!",e);
}finally{
ppt_app = new ActiveXComponent("PowerPoint.Application");
}
} finally {
// ppt_app.invoke("Quit");
// ComThread.Release();
}
}
}
四、运行测试
java
public static void main(String[] args) {
JacobUtil.ppt2PDF("D:\\data\\out\\lanhezhong文件转换.pptx", "D:\\data\\out\\lanhezhong文件转换.pptx.pdf");
}
运行结果:
总结: ppt转pdf转换的结果比较好,基本上保持ppt的原本内容格式。
***********************************************************************************************
author:蓝何忠
email:lanhezhong@163.com
***********************************************************************************************