Google Apps Script that merges the values from a Google Spreadsheet into a Google Doc template (does a mail merge) to create a GDoc or PDF. More details can be found at www.andrewroberts.net/2014/10/google-apps-script-create-pdf/. Go to https://tinyurl.com/yd8v2do2 if you would like me to set it up for you.

createPDF.gs

//
// Create a PDF by merging values from a Google spreadsheet into a Google Doc
// ==========================================================================
//
// Demo GSheet & script - http://bit.ly/createPDF
// Demo GDoc template - 1QnWfeGrZ-86zY_Z7gPwbLoEx-m9YreFb7fc9XPWkwDw
//

// Config
// ======

// GDoc Template
// -------------
//
// Replace this with ID of your template document: "https://docs.google.com/document/d/YOUR_GDOC_TEMPLATE_ID_HERE/edit"

// var GDOC_TEMPLATE_ID = ''
var GDOC_TEMPLATE_ID = '1QnWfeGrZ-86zY_Z7gPwbLoEx-m9YreFb7fc9XPWkwDw' // Demo template

// PDF File or GDoc
// ----------------
//
// If set to false the merged file is left as a GDoc

// true or false
var PDF_FILE_CREATE = true 

// New Merged File Name
// --------------------
//
// You can specify a name for the new PDF file here, or leave empty to use the default name
// of the form "Merge - [YYYYMMdd_hhmmss].pdf", e.g. "Merge - 20200431_112132.pdf".
// Alternatively one of the columns can be used to name the new file

// This has priority over NEW_FILE_NAME, set to '' to ignore
var HEADER_TO_USE_FOR_FILE_NAME = ''

// Set to '' to ignore, '.pdf' will be added on
var NEW_FILE_NAME = ''

var NEW_FILE_NAME_DEFAULT = 'Merge' // + timestamp

// Email
// -----
//
// Specify the column header to use for email and whether or not to send emails

// true or false
var EMAIL_SEND = false // true or false

var EMAIL_FIELD_NAME = 'Email'

var EMAIL_SUBJECT = 'The email subject ---- UPDATE ME -----'
var EMAIL_BODY = 'The email body ------ UPDATE ME ---------'

// PDF Folder
// ----------
//
// Specify the ID of the folder that the PDF will be put into

var NEW_FOLDER_ID = ''

// Code
// ====

function onOpen() {
  SpreadsheetApp
    .getUi()
    .createMenu('Mail Merge')
    .addItem('Merge data from active row to create new file', 'mailMerge')
    .addToUi()
} 

/**  
 * Take the fields from the active row in the active sheet
 * and, using a Google Doc template, create a PDF doc with these
 * fields replacing the keys in the template. The keys are identified
 * by being wrapped in curly brackets, e.g. {{Name}}.
 *
 * @return {Object} the completed PDF file
 */

function mailMerge() {

  var copyFile        = null 
  var activeRowIndex  = null 
  var activeRowValues = null
  var headerRow       = null
  var copyBody        = null
  var copyDoc         = null
  var newFile         = null
  var recipient       = null
  var newFileName     = null
  var newFileFolder   = null
  
  var ui              = getUi()
  
  if (!gotGDocTemplate()) {return}
  getSheetData()
  if (isHeaderRow()) {return}  
  replacePlaceholders()  
  locateNewFile()
  setFileName()
  sendEmail()
  displayFinalDialog()
  return
  
  // Private Functions
  // -----------------

  function getUi() {
    var ui = SpreadsheetApp.getUi()
    return {
      UI: ui,
      TITLE: 'Create PDF',
      BUTTONS: ui.ButtonSet.OK
    }
  }

  function getSheetData() {
    
    copyFile = DriveApp.getFileById(GDOC_TEMPLATE_ID).makeCopy()
    var copyId = copyFile.getId()
    copyDoc = DocumentApp.openById(copyId)
    copyBody = copyDoc.getActiveSection()
    var activeSheet = SpreadsheetApp.getActiveSheet()
    var numberOfColumns = activeSheet.getLastColumn()
    activeRowIndex = activeSheet.getActiveRange().getRowIndex()
    var activeRowRange = activeSheet.getRange(activeRowIndex, 1, 1, numberOfColumns)
    activeRowValues = activeRowRange.getDisplayValues()
    headerRow = activeSheet.getRange(1, 1, 1, numberOfColumns).getValues()
  }

  function gotGDocTemplate() {
  
    if (GDOC_TEMPLATE_ID !== '') {return true}    
    ui.UI.alert(ui.TITLE, 'GDOC_TEMPLATE_ID needs to be defined in Code.gs.', ui.BUTTONS)
    return false
  }

  function isHeaderRow() {   
  
    if (activeRowIndex <= 1) {
      ui.UI.alert(ui.TITLE, 'Select a row below the header row.', ui.BUTTONS)
      return true
    } else {
      return false
    }
  }

  function replacePlaceholders() {
  
    for (var columnIndex = 0; columnIndex < headerRow[0].length; columnIndex++) {    
    
      var nextHeader = headerRow[0][columnIndex]
      
      // Replace any non-alphanumeric values in the header and make it case-insenstive
      var nextPlaceholder = '(?i){{' + nextHeader.replace(/[^a-z0-9\s]/gi, ".") + '}}'
      
      var nextValue = activeRowValues[0][columnIndex]        
      
      if (EMAIL_SEND && nextHeader.toLowerCase() === EMAIL_FIELD_NAME.toLowerCase()) {
        recipient = nextValue
      }  
      
      if (HEADER_TO_USE_FOR_FILE_NAME !== '' && 
          nextHeader.toLowerCase() === HEADER_TO_USE_FOR_FILE_NAME.toLowerCase()) {
        newFileName = nextValue
      }
      
      copyBody.replaceText(nextPlaceholder, nextValue)                         
    }  
    
    copyDoc.saveAndClose()
  }

  function locateNewFile() {
  
    var copyFileParentFolder = copyFile.getParents().next() // Assume just one parent  
    
    if (NEW_FOLDER_ID !== '') {
      newFileFolder = DriveApp.getFolderById(NEW_FOLDER_ID)
    } else {
      newFileFolder = copyFileParentFolder
    }
          
    if (PDF_FILE_CREATE) {
    
      var blob = copyFile.getAs('application/pdf')
      newFile = newFileFolder.createFile(blob)         
      copyFile.setTrashed(true)
      
    } else {
    
      newFile = copyFile        
    }
    
    if (NEW_FOLDER_ID !== '') {
      
      // make an orphan
      copyFileParentFolder.removeFile(newFile) 
      
      // then add to new folder, so never in two places
      newFileFolder.addFile(newFile)
      
    } else {
      // The file is already in the right place
    }
    
  } // mailMerge.locateNewFile()

  function setFileName() {  
  
    if (HEADER_TO_USE_FOR_FILE_NAME) {
      if (newFileName === null) {
        throw new Error('Could not find header "' + HEADER_TO_USE_FOR_FILE_NAME + '" for file name')
      }
    } else {
      if (NEW_FILE_NAME !== '') {
        newFileName = NEW_FILE_NAME
      } else {
        var timeZone = Session.getScriptTimeZone()    
        newFileName = NEW_FILE_NAME_DEFAULT + ' - ' + Utilities.formatDate(new Date(), timeZone, 'YYYYMMdd_hhmmss')
      }
    }
    
    newFileName = newFileName + (PDF_FILE_CREATE ? '.pdf' : '')
    newFile.setName(newFileName)
  }

  function sendEmail() {
  
    if (recipient === null) {return}
    
    MailApp.sendEmail(
      recipient, 
      EMAIL_SUBJECT, 
      EMAIL_BODY,
      {attachments: [newFile]})
      
    ui.UI.alert(ui.TITLE, 'New file emailed to ' + recipient + '.', ui.BUTTONS)
  }
  
  function displayFinalDialog() {  
  
    var message = 'the same folder as this GSheet'
    
    if (NEW_FOLDER_ID !== '') {
      message = '"' + newFileFolder.getName() + '" folder'
    }
    
    var userInterface = HtmlService
      .createHtmlOutput(
        '<a href="' + newFile.getUrl() + '" target="_blank">' + 
          'New file "' + newFileName + '" created in ' + message + '.</a>')
      .setWidth(300)
      .setHeight(80)      
      
    ui.UI.showModalDialog(userInterface, ui.TITLE)
  }
} 

Thanks, @AlbertTCB, so much for your effort & for sharing the script. It's a great script and works like a charm. I've just one more question.
How can I have an option to select multiple rows simultaneously to create a PDF for them instead of choosing just one row?

@shekoweb Take a look at https://www.andrewroberts.net/2017/08/pdf-creator-send-multiple-pdfs-based-selected-rows/

Thank you so much @andrewroberts for this. It works great at my end - just a few hiccups.

My Google sheets generates PDF successfully, then i shared the Google sheets as an Editor with someone with a Google account and they granted Sheets & scripts all account access.

When they click on "create PDF" they get the following error:
Exception: No item with the given ID could be found. Possibly because you have not edited this item or you do not have permission to access it

How do people that have editor access to the sheets be able to create PDF ?

I would guess that it is more likely that they don't have view access to the GDoc template used to create the PDF.

…

On Mon, 25 Apr 2022 at 14:22, Victor Nwachukwu ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ Thank you so much @andrewroberts <https://github.com/andrewroberts> for this. It works great at my end - just a few hiccups. My Google sheets generates PDF successfully, then i shared the Google sheets *as an Editor* with someone with a Google account and they granted Sheets & scripts all account access. When they click on "create PDF" they get the following error: Exception: No item with the given ID could be found. Possibly because you have not edited this item or you do not have permission to access it How do people that have editor access to the sheets be able to *create PDF* ? — Reply to this email directly, view it on GitHub <https://gist.github.com/21bc8b1b3fc7d3b40e6b#gistcomment-4144341>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABD4XXJT4Q2BRH5DEMC2IGTVG2MBLANCNFSM4HPVPU2Q> . You are receiving this because you were mentioned.Message ID: ***@***.***>

@andrewroberts it worked! I gave them editor access to the template doc and pdf folders. God bless you🙌🏾