diff --git a/Dockerfile b/Dockerfile
index b13ff1a..8c33334 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,10 +7,11 @@ ENV MAX_FILE_UPLOADS=201
 ENV PDF_STORAGE_PATH=/data
 ENV DISABLE_ORGANIZATION=false
 ENV DEFAULT_LANGUAGE=fr_FR.UTF-8
+ENV PDF_STORAGE_ENCRYPTION=true
 
 RUN apt update && \
     apt install -y vim locales gettext-base librsvg2-bin pdftk imagemagick potrace ghostscript && \
-    docker-php-ext-install gettext && \
+    docker-php-ext-install gettext gpg && \
     rm -rf /var/lib/apt/lists/*
 
 COPY . /usr/local/signaturepdf
diff --git a/config/config.ini.tpl b/config/config.ini.tpl
index d515b99..9c089d9 100644
--- a/config/config.ini.tpl
+++ b/config/config.ini.tpl
@@ -9,3 +9,6 @@ DISABLE_ORGANIZATION=${DISABLE_ORGANIZATION}
 
 ; Manage demo link pdf : true (by default, show), false (hide), or custom link
 PDF_DEMO_LINK=${PDF_DEMO_LINK}
+
+; Encryption activation (default activation if GPG is installed)
+PDF_STORAGE_ENCRYPTION=${PDF_STORAGE_ENCRYPTION}
diff --git a/locale/application.pot b/locale/application.pot
index e0baa27..a0c36c2 100644
--- a/locale/application.pot
+++ b/locale/application.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-03-26 22:54+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -246,6 +246,9 @@ msgstr ""
 msgid "This PDF is shared with others to be signed by multiple people"
 msgstr ""
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr ""
 
@@ -365,6 +368,9 @@ msgstr ""
 msgid "after the last signature."
 msgstr ""
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr ""
diff --git a/locale/ar/LC_MESSAGES/application.po b/locale/ar/LC_MESSAGES/application.po
index d202e87..b616dd0 100644
--- a/locale/ar/LC_MESSAGES/application.po
+++ b/locale/ar/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2023-11-18 05:03+0000\n"
 "Last-Translator: ButterflyOfFire <boffire@users.noreply.hosted.weblate.org>\n"
 "Language-Team: Arabic <https://hosted.weblate.org/projects/signature-pdf/"
@@ -249,6 +249,9 @@ msgstr "توقيع الـ PDF"
 msgid "This PDF is shared with others to be signed by multiple people"
 msgstr "ملف PDF هذا مشارَك مع أشخاص آخرين لإمضائه من قِبل عدة أشخاص"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "الاحتفاظ بالتحديد نشطًا"
 
@@ -372,6 +375,9 @@ msgstr "ساعة واحدة"
 msgid "after the last signature."
 msgstr "بعد آخِر توقيع."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s ابدأ المشارَكة"
diff --git a/locale/br/LC_MESSAGES/application.po b/locale/br/LC_MESSAGES/application.po
index b63c3d7..3b3e027 100644
--- a/locale/br/LC_MESSAGES/application.po
+++ b/locale/br/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Automatically generated\n"
 "Language-Team: none\n"
@@ -245,6 +245,9 @@ msgstr ""
 msgid "This PDF is shared with others to be signed by multiple people"
 msgstr ""
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr ""
 
@@ -364,6 +367,9 @@ msgstr ""
 msgid "after the last signature."
 msgstr ""
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr ""
diff --git a/locale/de/LC_MESSAGES/application.po b/locale/de/LC_MESSAGES/application.po
index 1bd98ab..e62cb59 100644
--- a/locale/de/LC_MESSAGES/application.po
+++ b/locale/de/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2024-02-07 02:01+0000\n"
 "Last-Translator: Ettore Atalan <atalanttore@googlemail.com>\n"
 "Language-Team: German <https://hosted.weblate.org/projects/signature-pdf/"
@@ -255,6 +255,9 @@ msgstr ""
 "Diese PDF-Datei wird an andere weitergegeben, damit sie von mehreren "
 "Personen unterzeichnet werden kann"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr ""
 
@@ -377,6 +380,9 @@ msgstr "für eine Stunde"
 msgid "after the last signature."
 msgstr ""
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr ""
diff --git a/locale/fr/LC_MESSAGES/application.po b/locale/fr/LC_MESSAGES/application.po
index 72c9316..74d577c 100644
--- a/locale/fr/LC_MESSAGES/application.po
+++ b/locale/fr/LC_MESSAGES/application.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2023-09-30 12:59+0000\n"
 "Last-Translator: ButterflyOfFire <boffire@users.noreply.hosted.weblate.org>\n"
 "Language-Team: French <https://hosted.weblate.org/projects/signature-pdf/"
@@ -250,6 +250,9 @@ msgstr "Signature du PDF"
 msgid "This PDF is shared with others to be signed by multiple people"
 msgstr "Ce PDF est partagé avec d'autres personnes pour être signé à plusieurs"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "Garder la sélection active"
 
@@ -373,6 +376,9 @@ msgstr "pendant une heure"
 msgid "after the last signature."
 msgstr "après la dernière signature."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s Démarrer le partage"
diff --git a/locale/it/LC_MESSAGES/application.po b/locale/it/LC_MESSAGES/application.po
index d6d22b9..1008ae5 100644
--- a/locale/it/LC_MESSAGES/application.po
+++ b/locale/it/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2023-12-11 19:05+0000\n"
 "Last-Translator: Paolo Mauri <paolo@paolomauri.it>\n"
 "Language-Team: Italian <https://hosted.weblate.org/projects/signature-pdf/"
@@ -248,6 +248,9 @@ msgstr "Firma del PDF"
 msgid "This PDF is shared with others to be signed by multiple people"
 msgstr "Questo PDF è condiviso con altri per essere firmato da più persone"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "Tieni attiva la selezione"
 
@@ -371,6 +374,9 @@ msgstr "per un'ora"
 msgid "after the last signature."
 msgstr "dopo l'ultima firma."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s Inizia la condivisione"
diff --git a/locale/kab/LC_MESSAGES/application.po b/locale/kab/LC_MESSAGES/application.po
index 10c6104..d228611 100644
--- a/locale/kab/LC_MESSAGES/application.po
+++ b/locale/kab/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2023-09-30 00:00+0000\n"
 "Last-Translator: R_SACI <rgebbid@gmail.com>\n"
 "Language-Team: Kabyle <https://hosted.weblate.org/projects/signature-pdf/"
@@ -250,6 +250,9 @@ msgstr ""
 "Afaylu-a PDF yettwabḍa d yimdanen niḍen i wakken ad yetgusezmel sɣur waṭas n "
 "yimdanen"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "Eǧǧ tafrant d turmidt"
 
@@ -373,6 +376,9 @@ msgstr "azal n usrag"
 msgid "after the last signature."
 msgstr "seld azmul aneggaru."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s Bdu beṭṭu"
diff --git a/locale/oc/LC_MESSAGES/application.po b/locale/oc/LC_MESSAGES/application.po
index c12b9ba..ec6df88 100644
--- a/locale/oc/LC_MESSAGES/application.po
+++ b/locale/oc/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2024-03-10 05:01+0000\n"
 "Last-Translator: Quentin PAGÈS <quentinantonin@free.fr>\n"
 "Language-Team: Occitan <https://hosted.weblate.org/projects/signature-pdf/"
@@ -250,6 +250,9 @@ msgstr ""
 "Aqueste PDF es partejat amb d’autras personas per èsser signat per mantuna "
 "persona"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "Gardar la seleccion activa"
 
@@ -373,6 +376,9 @@ msgstr "pendent una ora"
 msgid "after the last signature."
 msgstr "fins a la darrièra signatura."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s Aviar lo partiment"
diff --git a/locale/ro/LC_MESSAGES/application.po b/locale/ro/LC_MESSAGES/application.po
index 22c1d81..cc44974 100644
--- a/locale/ro/LC_MESSAGES/application.po
+++ b/locale/ro/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2024-01-02 19:08+0000\n"
 "Last-Translator: Alexandru-Ionut Chiuta <chiuta@gmail.com>\n"
 "Language-Team: Romanian <https://hosted.weblate.org/projects/signature-pdf/"
@@ -251,6 +251,9 @@ msgstr ""
 "Acest PDF este partajat altor persoane pentru a fi semnat de mai multe "
 "persoane"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "Păstrați selecția activă"
 
@@ -374,6 +377,9 @@ msgstr "pentru o oră"
 msgid "after the last signature."
 msgstr "după ultima semnătură."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s Începeți distribuirea"
diff --git a/locale/tr/LC_MESSAGES/application.po b/locale/tr/LC_MESSAGES/application.po
index baf7860..8afa626 100644
--- a/locale/tr/LC_MESSAGES/application.po
+++ b/locale/tr/LC_MESSAGES/application.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-02-08 23:02+0100\n"
+"POT-Creation-Date: 2024-07-30 18:44+0200\n"
 "PO-Revision-Date: 2023-12-06 14:10+0000\n"
 "Last-Translator: Metin Gür <gurmetin@gmail.com>\n"
 "Language-Team: Turkish <https://hosted.weblate.org/projects/signature-pdf/"
@@ -250,6 +250,9 @@ msgid "This PDF is shared with others to be signed by multiple people"
 msgstr ""
 "Bu PDF birden fazla kişi tarafından imzalanmak üzere başkalarıyla paylaşılır"
 
+msgid "This PDF is stored encrypted on the server."
+msgstr ""
+
 msgid "Keep the selection active"
 msgstr "Seçimi etkin tutun"
 
@@ -374,6 +377,9 @@ msgstr "bir saat"
 msgid "after the last signature."
 msgstr "son imza işlemi yapılana kadar."
 
+msgid "The PDF will be stored encrypted on the server"
+msgstr ""
+
 #, php-format
 msgid "%s Start sharing"
 msgstr "%s Paylaşmaya başla"
diff --git a/public/js/signature.js b/public/js/signature.js
index d4b452f..ab0e9ec 100644
--- a/public/js/signature.js
+++ b/public/js/signature.js
@@ -1033,22 +1033,12 @@ var modalSharing = function() {
         let modalInformationsEl = document.getElementById('modal-share-informations');
         let modalInformations = bootstrap.Modal.getOrCreateInstance(modalInformationsEl);
         modalInformations.show();
-        modalInformationsEl.addEventListener('hidden.bs.modal', function (event) {
-            if(window.location.hash) {
-                history.pushState({}, '', window.location.href.replace(/#.*$/, ''));
-            }
-        })
     }
 
     if(openModal == 'signed') {
         let modalSignedEl = document.getElementById('modal-signed');
         let modalSigned = bootstrap.Modal.getOrCreateInstance(modalSignedEl);
         modalSigned.show();
-        modalSignedEl.addEventListener('hidden.bs.modal', function (event) {
-            if(window.location.hash) {
-                history.pushState({}, '', window.location.href.replace(/#.*$/, ''));
-            }
-        })
     }
 }