diff --git a/src/main/resources/messages_ar_AR.properties b/src/main/resources/messages_ar_AR.properties
index ef3847a3..1b52ba8a 100644
--- a/src/main/resources/messages_ar_AR.properties
+++ b/src/main/resources/messages_ar_AR.properties
@@ -129,6 +129,9 @@ home.repair.desc = يحاول إصلاح ملف PDF تالف / معطل
 home.removeBlanks.title = إزالة الصفحات الفارغة
 home.removeBlanks.desc = يكتشف ويزيل الصفحات الفارغة من المستند
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.compare.title = قارن
 home.compare.desc = يقارن ويظهر الاختلافات بين 2 من مستندات PDF
 
diff --git a/src/main/resources/messages_ca_CA.properties b/src/main/resources/messages_ca_CA.properties
index d613629e..0d785b2a 100644
--- a/src/main/resources/messages_ca_CA.properties
+++ b/src/main/resources/messages_ca_CA.properties
@@ -122,6 +122,9 @@ home.repair.desc=Intenta reparar un PDF danyat o trencat
 home.removeBlanks.title=Elimina les pàgines en blanc
 home.removeBlanks.desc=Detecta i elimina les pàgines en blanc d'un document
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.compare.title=Compara
 home.compare.desc=Compara i mostra les diferències entre 2 documents PDF
 
diff --git a/src/main/resources/messages_de_DE.properties b/src/main/resources/messages_de_DE.properties
index 467c8692..47872c91 100644
--- a/src/main/resources/messages_de_DE.properties
+++ b/src/main/resources/messages_de_DE.properties
@@ -121,6 +121,9 @@ home.repair.desc=Versucht, ein beschädigtes/kaputtes PDF zu reparieren
 home.removeBlanks.title=Leere Seiten entfernen
 home.removeBlanks.desc=Erkennt und entfernt leere Seiten aus einem Dokument
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.compare.title=Vergleichen
 home.compare.desc=Vergleicht und zeigt die Unterschiede zwischen zwei PDF-Dokumenten an
 
diff --git a/src/main/resources/messages_es_ES.properties b/src/main/resources/messages_es_ES.properties
index d42611c2..dc639f71 100644
--- a/src/main/resources/messages_es_ES.properties
+++ b/src/main/resources/messages_es_ES.properties
@@ -121,6 +121,9 @@ home.repair.desc=Intenta reparar un PDF corrupto/roto
 home.removeBlanks.title=Eliminar páginas en blanco
 home.removeBlanks.descdetecta y elimina páginas en blanco de un documento
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.compare.title=Comparar
 home.compare.desc=Compara y muestra las diferencias entre 2 documentos PDF
 
diff --git a/src/main/resources/messages_fr_FR.properties b/src/main/resources/messages_fr_FR.properties
index 588b62f7..fdc3a81a 100644
--- a/src/main/resources/messages_fr_FR.properties
+++ b/src/main/resources/messages_fr_FR.properties
@@ -127,6 +127,9 @@ home.repair.desc=Essaye de réparer un PDF corrompu/cassé
 home.removeBlanks.title=Supprimer les pages vierges
 home.removeBlanks.desc=Détecte et supprime les pages vierges d'un document
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.compare.title=Comparer
 home.compare.desc=Compare et affiche les différences entre 2 documents PDF
 
diff --git a/src/main/resources/messages_it_IT.properties b/src/main/resources/messages_it_IT.properties
index 3ddbc85b..7512a29b 100644
--- a/src/main/resources/messages_it_IT.properties
+++ b/src/main/resources/messages_it_IT.properties
@@ -122,6 +122,9 @@ home.repair.desc=Prova a riparare un PDF corrotto.
 home.removeBlanks.title=Rimuovi pagine vuote
 home.removeBlanks.desc=Trova e rimuovi pagine vuote da un PDF.
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.compare.title=Compara
 home.compare.desc=Vedi e compara le differenze tra due PDF.
 
diff --git a/src/main/resources/messages_ru_RU.properties b/src/main/resources/messages_ru_RU.properties
index b163b640..c7617c45 100644
--- a/src/main/resources/messages_ru_RU.properties
+++ b/src/main/resources/messages_ru_RU.properties
@@ -125,6 +125,9 @@ home.removeBlanks.desc=Обнаруживает и удаляет пустые 
 home.compare.title=Сравнение
 home.compare.desc=Сравнивает и показывает различия между двумя PDF-документами
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.pageLayout.title=Multi-Page Layout
 home.pageLayout.desc=Merge multiple pages of a PDF document into a single page
 
diff --git a/src/main/resources/messages_sv_SE.properties b/src/main/resources/messages_sv_SE.properties
index 9cc30a6f..224fc41b 100644
--- a/src/main/resources/messages_sv_SE.properties
+++ b/src/main/resources/messages_sv_SE.properties
@@ -125,6 +125,9 @@ home.removeBlanks.desc=Känner av och tar bort tomma sidor från ett dokument
 home.compare.title=Jämför
 home.compare.desc=Jämför och visar skillnaderna mellan 2 PDF-dokument
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.pageLayout.title=Multi-Page Layout
 home.pageLayout.desc=Merge multiple pages of a PDF document into a single page
 
diff --git a/src/main/resources/messages_zh_CN.properties b/src/main/resources/messages_zh_CN.properties
index a33badea..6ae7df00 100644
--- a/src/main/resources/messages_zh_CN.properties
+++ b/src/main/resources/messages_zh_CN.properties
@@ -125,6 +125,9 @@ home.removeBlanks.desc=\u68C0\u6D4B\u5E76\u5220\u9664\u6587\u6863\u4E2D\u7684\u7
 home.compare.title=\u6BD4\u8F83
 home.compare.desc=\u6BD4\u8F83\u5E76\u663E\u793A 2 \u4E2A PDF \u6587\u6863\u4E4B\u95F4\u7684\u5DEE\u5F02
 
+home.certSign.title=Sign with Certificate
+home.certSign.desc=Signs a PDF with a Certificate/Key (PEM/P12)
+
 home.pageLayout.title=Multi-Page Layout
 home.pageLayout.desc=Merge multiple pages of a PDF document into a single page