diff --git a/library/lib.gs b/library/lib.gs
index 9d2f7f5..058f7ed 100644
--- a/library/lib.gs
+++ b/library/lib.gs
@@ -1,4 +1,157 @@
+/**
+ * Displays a dialog with a QR Code based on the provided text.
+ * @param {string}  text - The text to be converted into a QR Code.
+ */
+function generateQRCodeDialog(text) {
+  var htmlOutput = HtmlService.createHtmlOutput('<img src="' + generateQRCodeUrl(text) + '">')
+    .setWidth(200)
+    .setHeight(200);
+  
+  SpreadsheetApp.getUi().showModalDialog(htmlOutput, 'QR Code');
+}
+
+/**
+ * Generates the QR Code URL based on the provided text.
+ * @param {string}  text - The text to be converted into a QR Code.
+ * @returns {string} chartUrl - The generated QR Code URL.
+ */
+function generateQRCodeUrl(text) {
+  var encodedText = encodeURIComponent(text);
+  var chartUrl = 'https://chart.googleapis.com/chart?cht=qr&chs=200x200&chl=' + encodedText;
+  Logger.log(chartUrl)
+  return chartUrl;
+}
+
+/**
+ * Generates the base64-encoded image of the QR Code based on the provided text and logs it.
+ * @param {string}  text - The text to be converted into a QR Code.
+ */
+function generateQRCodeAndLogBase64(text) {
+  var qrCodeBase64 = generateQRCodeBase64(text);
+  Logger.log("QR Code Base64: " + qrCodeBase64);
+}
+
+/**
+ * Generates the base64-encoded image of the QR Code based on the provided text.
+ * @param {string}  text - The text to be converted into a QR Code.
+ * @returns {string} qrCodeBase64 - The base64-encoded image of the generated QR Code.
+ */
+function generateQRCodeBase64(text) {
+  var encodedText = encodeURIComponent(text);
+  var chartUrl = 'https://chart.googleapis.com/chart?cht=qr&chs=200x200&chl=' + encodedText;
+  var imageUrl = UrlFetchApp.fetch(chartUrl).getBlob().getAs('image/png');
+  var qrCodeBase64 = Utilities.base64Encode(imageUrl.getBytes());
+  return qrCodeBase64;
+}
+/**
+ * Displays a pop-up/alert in the spreadsheet.
+ * @param {string} message - The desired pop-up message.
+ * @param {string} status - The status of the message. You can replace it with "warning", "danger", or "success".
+ */
+function alertMaker(message, status) {
+  var ui = SpreadsheetApp.getUi();
+  ui.alert(status, message, ui.ButtonSet.OK);
+}
+
+/**
+ * Spins and replaces text within curly braces.
+ * @param {string} text - The text to be spun and replaced.
+ * @returns {string} - The spun and replaced text.
+ */
+function spinText(text) {
+  var spunText = text.replace(/{([^{}]*)}/g, function(match, choices) {
+    var choicesArray = choices.split("|");
+    var randomIndex = Math.floor(Math.random() * choicesArray.length);
+    return choicesArray[randomIndex];
+  });
+  return spunText;
+}
+
+/**
+ * Removes duplicate rows from the current sheet.
+ */
+function removeDuplicates() {
+  const sheet = SpreadsheetApp.getActiveSheet();
+  const data = sheet.getDataRange().getValues();
+  const uniqueData = {};
+  for (let row of data) {
+    const key = row.join();
+    uniqueData[key] = uniqueData[key] || row;
+  }
+  sheet.clearContents();
+  const newData = Object.values(uniqueData);
+  sheet.getRange(1, 1, newData.length, newData[0].length).setValues(newData);
+}
+
+/**
+ * Checks the status of a website URL or server (online or offline).
+ * @param {string} url - The URL of the website to be checked.
+ * @returns {boolean} - true for online, false for offline.
+ */
+function checkServer(url) {
+  try {
+    var response = UrlFetchApp.fetch(url, { muteHttpExceptions: true });
+    var responseCode = response.getResponseCode();
+    
+    if (responseCode == 200) {
+      return true; // Server online
+    } else {
+      return false; // Server offline or invalid response
+    }
+  } catch (error) {
+    return false; // Error occurred while pinging
+  }
+}
+
+/**
+ * Sets the value of a column in a spreadsheet without linking to the sheet.
+ * @param {string} worksheet - Your worksheet name.
+ * @param {string} cellcolomn - The column you want to change.
+ * @param {string} value - The value to set.
+ */
+function setValue(worksheet, cellcolomn, value) {
+  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
+  var sheet = spreadsheet.getSheetByName(worksheet);
+  var cell = sheet.getRange(cellcolomn);
+  cell.setValue(value);
+}
+
+/**
+ * Converts the spreadsheet to a PDF file and saves it in Google Drive.
+ * @param {string} spreadsheetId - The ID of the spreadsheet.
+ * @param {string} sheetName - The name of the sheet to convert.
+ * @param {string} folderId - The ID of the folder to save the PDF file in.
+ * @returns {string} idfile - The ID of the file used for downloading the file.
+ */
+function convertSpreadsheetToPDF(spreadsheetId, sheetName, folderId) {
+  var spreadsheet = SpreadsheetApp.openById(spreadsheetId);
+  var sheet = spreadsheet.getSheetByName(sheetName);
+  
+  var url = "https://docs.google.com/spreadsheets/d/" + spreadsheetId + "/export?exportFormat=pdf";
+  url += "&format=pdf";
+  url += "&gid=" + sheet.getSheetId();
+  url += "&size=A4";
+  url += "&portrait=true";
+  url += "&scale=4";
+  url += "&sheetnames=false&printtitle=false&pagenumbers=false";
+  url += "&gridlines=false";
+  url += "&fzr=false";
+
+  var pdfBlob = UrlFetchApp.fetch(url, {
+    headers: {
+      Authorization: "Bearer " + ScriptApp.getOAuthToken()
+    }
+  }).getBlob();
 
+  var timestamp = new Date().getTime();
+  var pdfFileName = sheetName + "_" + timestamp + ".pdf";
+
+  var folder = DriveApp.getFolderById(folderId);
+  var pdfFile = folder.createFile(pdfBlob).setName(pdfFileName);
+
+  var idfile = pdfFile.getId();
+  return idfile;
+}
 function copySpreadsheet(newName) {
   var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
   var newSpreadsheet = spreadsheet.copy(newName);