diff --git a/src/utils/chat.ts b/src/utils/chat.ts
index 9cc8cdd..8c06726 100644
--- a/src/utils/chat.ts
+++ b/src/utils/chat.ts
@@ -1,8 +1,7 @@
 import html2canvas from 'html2canvas';
-// import jsPDF from 'jspdf';
 import { ChatInterface } from '@type/chat';
-import { Theme } from '@type/theme';
 
+// Function to convert HTML to an image using html2canvas
 export const htmlToImg = async (html: HTMLDivElement) => {
   const needResize = window.innerWidth >= 1024;
   const initialWidth = html.style.width;
@@ -15,6 +14,7 @@ export const htmlToImg = async (html: HTMLDivElement) => {
   return dataURL;
 };
 
+// Function to download the image as a file
 export const downloadImg = (imgData: string, fileName: string) => {
   const link = document.createElement('a');
   link.href = imgData;
@@ -23,42 +23,7 @@ export const downloadImg = (imgData: string, fileName: string) => {
   link.remove();
 };
 
-// export const downloadPDF = (
-//   imageData: string,
-//   theme: Theme,
-//   fileName: string
-// ) => {
-//   const pdf = new jsPDF('p', 'mm');
-//   const imageProps = pdf.getImageProperties(imageData);
-//   const pageHeight = pdf.internal.pageSize.getHeight();
-//   const pageWidth = pdf.internal.pageSize.getWidth();
-//   const imgHeight = (imageProps.height * pageWidth) / imageProps.width;
-//   let heightLeft = imgHeight;
-//   let position = 0;
-
-//   pdf.addImage(imageData, 'PNG', 0, position, pageWidth, imgHeight);
-//   heightLeft -= pageHeight;
-
-//   while (heightLeft >= 0) {
-//     position -= pageHeight;
-//     heightLeft -= pageHeight;
-//     pdf.addPage();
-//     pdf.addImage(imageData, 'PNG', 0, position, pageWidth, imgHeight);
-//   }
-
-//   if (heightLeft < 0) {
-//     heightLeft = -heightLeft;
-//     if (theme === 'dark') {
-//       pdf.setFillColor(52, 53, 65);
-//     } else {
-//       pdf.setFillColor(255, 255, 255);
-//     }
-//     pdf.rect(0, pageHeight - heightLeft - 3, pageWidth, heightLeft + 3, 'F');
-//   }
-
-//   pdf.save(fileName);
-// };
-
+// Function to convert a chat object to markdown format
 export const chatToMarkdown = (chat: ChatInterface) => {
   let markdown = `# ${chat.title}\n\n`;
   chat.messages.forEach((message) => {
@@ -67,6 +32,7 @@ export const chatToMarkdown = (chat: ChatInterface) => {
   return markdown;
 };
 
+// Function to download the markdown content as a file
 export const downloadMarkdown = (markdown: string, fileName: string) => {
   const link = document.createElement('a');
   const markdownFile = new Blob([markdown], { type: 'text/markdown' });