diff --git a/apps/OpenSignServer/cloud/parsefunction/pdf/PDF.min.js b/apps/OpenSignServer/cloud/parsefunction/pdf/PDF.min.js
index bebaa36ce..0c588349f 100644
--- a/apps/OpenSignServer/cloud/parsefunction/pdf/PDF.min.js
+++ b/apps/OpenSignServer/cloud/parsefunction/pdf/PDF.min.js
@@ -55,9 +55,9 @@ async function sendMail(e) {
       html:
         "<html><head><meta http-equiv='Content-Type' content='text/html; charset=UTF-8' /></head><body>  <div style='background-color:#f5f5f5;padding:20px'>    <div style='box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;background-color:white;'> <div><img src=https://qikinnovation.ams3.digitaloceanspaces.com/logo.png  height='50' style='padding:20px'/> </div><div style='padding:2px;font-family:system-ui; background-color: #47a3ad;'>    <p style='font-size:20px;font-weight:400;color:white;padding-left:20px',>  Document Copy</p></div><div><p style='padding:20px;font-family:system-ui;font-size:14px'>A copy of the document " +
         s +
-        ' Standard is attached to this email. Kindly download the document from the attachment.</p></div> </div><div><p>This is an automated email from Open Sign. For any queries regarding this email, please contact the sender ' +
+        ' Standard is attached to this email. Kindly download the document from the attachment.</p></div> </div><div><p>This is an automated email from OpenSign™. For any queries regarding this email, please contact the sender ' +
         t.Mail +
-        ' directly. If you think this email is inappropriate or spam, you may file a complaint with Open Sign <a href=www.opensignlabs.com target=_blank>here</a>.</p></div></div></body></html>',
+        ' directly. If you think this email is inappropriate or spam, you may file a complaint with OpenSign™ <a href=www.opensignlabs.com target=_blank>here</a>.</p></div></div></body></html>',
     };
   await axios.post(serverUrl + '/functions/sendmailv3', a, {
     headers: {
@@ -80,9 +80,9 @@ async function sendCompletedMail(e) {
       html:
         "<html><head><meta http-equiv='Content-Type' content='text/html; charset=UTF-8' /></head><body>  <div style='background-color:#f5f5f5;padding:20px'>    <div style='box-shadow: rgba(0, 0, 0, 0.1) 0px 4px 12px;background-color:white;'> <div><img src=https://qikinnovation.ams3.digitaloceanspaces.com/logo.png  height='50' style='padding:20px'/> </div><div style='padding:2px;font-family:system-ui; background-color: #47a3ad;'>    <p style='font-size:20px;font-weight:400;color:white;padding-left:20px',> Document sign successfully</p></div><div><p style='padding:20px;font-family:system-ui;font-size:14px'>All parties have successfully signed the document" +
         s +
-        '. Kindly download the document from the attachment.</p></div> </div><div><p>This is an automated email from Open Sign. For any queries regarding this email, please contact the sender ' +
+        '. Kindly download the document from the attachment.</p></div> </div><div><p>This is an automated email from OpenSign™. For any queries regarding this email, please contact the sender ' +
         t.Mail +
-        ' directly. If you think this email is inappropriate or spam, you may file a complaint with Open Sign <a href=www.opensignlabs.com target=_blank>here</a>.</p></div></div></body></html>',
+        ' directly. If you think this email is inappropriate or spam, you may file a complaint with OpenSign™ <a href=www.opensignlabs.com target=_blank>here</a>.</p></div></div></body></html>',
     };
   await axios.post(serverUrl + '/functions/sendmailv3', a, {
     headers: {
@@ -238,13 +238,13 @@ async function PDF(i, n) {
                   v && 0 < v.length
                     ? plainAddPlaceholder({
                         pdfBuffer: e,
-                        reason: 'Digitally signed by Open sign for ' + v?.join(', '),
+                        reason: 'Digitally signed by OpenSign™ for ' + v?.join(', '),
                         location: 'location',
                         signatureLength: 1e4,
                       })
                     : plainAddPlaceholder({
                         pdfBuffer: e,
-                        reason: 'Digitally signed by Open sign for ' + m + ' <' + g + '>',
+                        reason: 'Digitally signed by OpenSign™ for ' + m + ' <' + g + '>',
                         location: 'location',
                         signatureLength: 1e4,
                       })),
