diff --git a/src/dbp-official-signature-pdf-upload.js b/src/dbp-official-signature-pdf-upload.js
index a6423ea17fb292fa3dadfe02fbd23eaf79fb50c8..09b9c468e21cf9e5d63cb15fa577dbb31c49bec2 100644
--- a/src/dbp-official-signature-pdf-upload.js
+++ b/src/dbp-official-signature-pdf-upload.js
@@ -57,6 +57,7 @@ class OfficialSignaturePdfUpload extends ScopedElementsMixin(DBPSignatureLitElem
         this.isAnnotationViewVisible = false;
         this.addAnnotationInProgress = false;
         this.activity = new Activity(metadata);
+        this.showClipboard = false;
     }
 
     static get scopedElements() {
@@ -104,6 +105,7 @@ class OfficialSignaturePdfUpload extends ScopedElementsMixin(DBPSignatureLitElem
             queuedFilesAnnotations: { type: Array, attribute: false },
             queuedFilesAnnotationsCount: { type: Number, attribute: false },
             addAnnotationInProgress: { type: Boolean, attribute: false },
+            showClipboard: { type: Boolean, attribute: 'show-clipboard' },
         };
     }
 
@@ -843,9 +845,8 @@ class OfficialSignaturePdfUpload extends ScopedElementsMixin(DBPSignatureLitElem
                         <dbp-file-source
                             id="file-source"
                             context="${i18n.t('official-pdf-upload.file-picker-context')}"
-                            subscribe="show-clipboard:show-clipboard"
                             allowed-mime-types="application/pdf"
-                            enabled-targets="local${this.showNextcloudFilePicker ? ",nextcloud" : ""},clipboard"
+                            enabled-targets="local${this.showNextcloudFilePicker ? ",nextcloud" : ""}${this.showClipboard ? ",clipboard" : ""}"
                             nextcloud-auth-url="${this.nextcloudWebAppPasswordURL}"
                             nextcloud-web-dav-url="${this.nextcloudWebDavURL}"
                             nextcloud-name="${this.nextcloudName}"
@@ -1002,8 +1003,8 @@ class OfficialSignaturePdfUpload extends ScopedElementsMixin(DBPSignatureLitElem
             <dbp-file-sink id="file-sink"
                 context="${i18n.t('qualified-pdf-upload.save-field-label', {count: this.signedFilesToDownload})}"
                 filename="signed-documents.zip"
-                subscribe="initial-file-handling-state:initial-file-handling-state,clipboard-files:clipboard-files,show-clipboard:show-clipboard"
-                enabled-targets="local${this.showNextcloudFilePicker ? ",nextcloud" : ""},clipboard"
+                subscribe="initial-file-handling-state:initial-file-handling-state,clipboard-files:clipboard-files"
+                enabled-targets="local${this.showNextcloudFilePicker ? ",nextcloud" : ""}${this.showClipboard ? ",clipboard" : ""}"
                 nextcloud-auth-url="${this.nextcloudWebAppPasswordURL}"
                 nextcloud-web-dav-url="${this.nextcloudWebDavURL}"
                 nextcloud-name="${this.nextcloudName}"
diff --git a/src/dbp-official-signature-pdf-upload.metadata.json b/src/dbp-official-signature-pdf-upload.metadata.json
index 1ef66b654bb2abbc5651d1dab291f491d24d7081..fc6e45515890b0a32b1ae8d9868a44f6560582b3 100644
--- a/src/dbp-official-signature-pdf-upload.metadata.json
+++ b/src/dbp-official-signature-pdf-upload.metadata.json
@@ -14,6 +14,6 @@
     "de": "Erlaubt das Hochladen von PDF-Dokumenten, um sie mit einer Amtssignatur zu versehen",
     "en": "Allows upload of PDF-documents to officially sign them"
   },
-  "subscribe": "lang,entry-point-url,nextcloud-web-app-password-url,nextcloud-webdav-url,nextcloud-name,nextcloud-file-url,show-nextcloud-file-picker,auth,allow-annotating",
+  "subscribe": "lang,entry-point-url,nextcloud-web-app-password-url,nextcloud-webdav-url,nextcloud-name,nextcloud-file-url,show-nextcloud-file-picker,auth,allow-annotating,show-clipboard",
   "required_roles": ["ROLE_SCOPE_OFFICIAL-SIGNATURE"]
 }