docFile_replace

 //模板文件複製一份新文件 OK

try {

  var folder = DriveApp.getFolderById(folder2);

  var files = folder.getFilesByName(fileInfo.fileName);

  if(files.hasNext()){

    var file = files.next();

    var document = DocumentApp.openById(file.getId());

    // 進行內容修改

    var body = document.getBody();

    body.replaceText('{B0}', content[0]);

    body.replaceText('{B1}', content[1]);

    body.replaceText('{B2}', content[2]);

    body.replaceText('{B3}', content[3]);

    body.replaceText('{科別}', fileInfo.subject);

    body.replaceText('{姓名}', fileInfo.name);

    body.replaceText('{身份證}', fileInfo.id_card);

    document.saveAndClose(); //儲存並關閉

    //轉PDF

    var pdfResult = convertDocToPDF(fileInfo); //

    //刪除複製的文件

    var files = DriveApp.getFilesByName(fileInfo.fileName);

    while (files.hasNext()) {

      files.next().setTrashed(true);

    }

    return pdfResult;

  } else {

    return -1; //傳入的檔名未找到

  }

}

catch (error) {

  return error.message;

}

//轉PDF

  var fileId = convertDocToPDF(doc_file);

  //刪除複製的文件

  var files = DriveApp.getFilesByName(doc_file);

  while (files.hasNext()) {

    files.next().setTrashed(true);

  }

  return fileId;

}

function convertDocToPDF(fileName) {

  var folder = DriveApp.getFolderById(folderID);

  var docFileName = fileName; // Google 文件檔名

  //尋找文件檔案

  var files = folder.getFilesByName(docFileName);

  if (files.hasNext()) {

    var file = files.next();

    var docId = file.getId();

    // 將文件轉換為 PDF，位於相同資料夾，PDF在雲端資料夾無ID。

    var pdfFile = DriveApp.getFileById(docId).getAs('application/pdf');

    var pdfFileName = docFileName + "_converted.pdf"; //更改pdf檔名

    folder.createFile(pdfFile).setName(pdfFileName);

    var file = DriveApp.getFilesByName(docId + '.pdf');

    if ( file.hasNext() ) {

      var pdfFile_id = file.next().getId();

      return docId;

    } else {

      return pdfFileName;

    }

  } else {

    return "找不到指定的 Google 文件檔案。";

  }

}