转载至：/sangjinchao/article/details/78053545
把代码放到了github上，点击进入
前阶段有个项目用到了线上预览功能，
关于预览office文件实现核心就是，把office文件（word,excel,ppt）转为pdf文件，
然后再把pdf文件经过pdf2html转为html文件进行预览。
利用openoffice的话，非常简单，不过效果不太好，转成的pdf样式会乱！
这里就不做介绍了。
下面我把office文件转为pdf步骤写一下(代码在最后)：
1.php开启dcom扩展
打开php.ini，搜索php_com_dotnet和php_com_dotnet：
extension=php_com_dotnet.dll //把前面的分号去掉
com.allow_dcom = true //改为true
重启apache
2.配置office组件服务
.
像这样的操作还有两个！！
3.php代码：
ppt转pdf代码
public function ppt_to_pdf() {
$srcfilename = ‘E:/aa.ppt’;
KaTeX parse error: Expected '}', got 'EOF' at end of input: …f(!file_exists(srcfilename)){
return;
}
$ppt = new \COM(“powerpoint.application”) or die(“Unable to instantiate Powerpoint”);
$presentation = ppt−>Presentations−>Open(ppt->Presentations->Open(ppt−>Presentations−>Open(srcfilename, false, false, false);
presentation−>SaveAs(presentation->SaveAs(presentation−>SaveAs(destfilename,32,1);
$presentation->Close();
$ppt->Quit();
} catch (\Exception KaTeX parse error: Expected '}', got 'EOF' at end of input: …(method_exists(ppt, “Quit”)){
$ppt->Quit();
}
return;
}
}
excel转ppt
public function excel_to_pdf() {$srcfilename = 'E:/aa.xls';$destfilename = 'E:/aa.pdf';try {if(!file_exists($srcfilename)){return;}$excel = new \COM("excel.application") or die("Unable to instantiate excel");$workbook = $excel->Workbooks->Open($srcfilename, null, false, null, "1", "1", true);$workbook->ExportAsFixedFormat(0, $destfilename);$workbook->Close();$excel->Quit();} catch (\Exception $e) {echo ("src:$srcfilename catch exception:" . $e->__toString());if (method_exists($excel, "Quit")){$excel->Quit();}return;}}
word转pdf(其实文本格式的文件都可以用这个，比如：txt)
public function doc_to_pdf() {$srcfilename = 'E:/aa.doc';$destfilename = 'E:/aa.pdf';try {if(!file_exists($srcfilename)){return;}$word = new \COM("word.application") or die("Can't start Word!");$word->Visible=0;$word->Documents->Open($srcfilename, false, false, false, "1", "1", true);$word->ActiveDocument->final = false;$word->ActiveDocument->Saved = true;$word->ActiveDocument->ExportAsFixedFormat($destfilename,17,// wdExportFormatPDFfalse, // open file after export0,// wdExportOptimizeForPrint3,// wdExportFromTo1,// begin page5000, // end page7,// wdExportDocumentWithMarkuptrue, // IncludeDocPropstrue, // KeepIRM1 // WdExportCreateBookmarks);$word->ActiveDocument->Close();$word->Quit();} catch (\Exception $e) {if (method_exists($word, "Quit")){$word->Quit();}return;}}
原文：/sangjinchao/article/details/78053545
