diff --git a/lib/Controller/PageController.php b/lib/Controller/PageController.php
index d67ac1a022..0d09a96626 100644
--- a/lib/Controller/PageController.php
+++ b/lib/Controller/PageController.php
@@ -110,6 +110,7 @@ public function index(): TemplateResponse {
 
 		$policy = new ContentSecurityPolicy();
 		$policy->allowEvalScript(true);
+		$policy->addAllowedFrameDomain('\'self\'');
 		$response->setContentSecurityPolicy($policy);
 
 		return $response;
diff --git a/src/App.vue b/src/App.vue
index 8de457eff7..da9e04137b 100644
--- a/src/App.vue
+++ b/src/App.vue
@@ -40,8 +40,8 @@
 						<FileSignIcon :size="20" />
 					</template>
 				</NcAppNavigationItem>
-				<NcAppNavigationItem id="sign-files"
-					:to="{ name: 'signFiles' }"
+				<NcAppNavigationItem id="timeline"
+					:to="{ name: 'timeline' }"
 					:name="t('libresign', 'Files')"
 					@click="unselectFile">
 					<template #icon>
diff --git a/src/Components/Request/RequestSignature.vue b/src/Components/Request/RequestSignature.vue
index c235e6a9e5..6dba93467b 100644
--- a/src/Components/Request/RequestSignature.vue
+++ b/src/Components/Request/RequestSignature.vue
@@ -6,6 +6,7 @@
 	<div v-else
 		id="request-signature-list-signers">
 		<NcButton v-if="canRequestSign && !filesStore.isFullSigned()"
+			:type="dataSigners.length === 0 ? 'primary' : 'secondary'"
 			@click="addSigner">
 			{{ t('libresign', 'Add signer') }}
 		</NcButton>
@@ -30,11 +31,8 @@
 			</template>
 		</Signers>
 		<div class="action-buttons">
-			<NcButton v-if="canSave && !filesStore.isPartialSigned"
-				:type="{
-					primary: !canSign,
-					secondary: canSign
-				}"
+			<NcButton v-if="canSave"
+				:type="canSign ? 'secondary' : 'primary'"
 				:disabled="hasLoading"
 				@click="save()">
 				<template #icon>
@@ -52,11 +50,15 @@
 				{{ t('libresign', 'Sign') }}
 			</NcButton>
 			<NcButton v-if="filesStore.isFullSigned()"
+				type="primary"
 				@click="validationFile()">
 				{{ t('libresign', 'Validate') }}
 			</NcButton>
 		</div>
 		<VisibleElements />
+		<NcModal v-if="showSignModal" size="full" @close="closeModal()">
+			<iframe :src="modalSrc" class="iframe" />
+		</NcModal>
 	</div>
 </template>
 <script>
@@ -66,6 +68,7 @@ import { emit, subscribe, unsubscribe } from '@nextcloud/event-bus'
 import NcActionButton from '@nextcloud/vue/dist/Components/NcActionButton.js'
 import NcButton from '@nextcloud/vue/dist/Components/NcButton.js'
 import NcLoadingIcon from '@nextcloud/vue/dist/Components/NcLoadingIcon.js'
+import NcModal from '@nextcloud/vue/dist/Components/NcModal.js'
 import { getCurrentUser } from '@nextcloud/auth'
 import Delete from 'vue-material-design-icons/Delete.vue'
 import { showError, showSuccess } from '@nextcloud/dialogs'
@@ -82,6 +85,7 @@ export default {
 		NcActionButton,
 		NcButton,
 		NcLoadingIcon,
+		NcModal,
 		Delete,
 		Signers,
 		IdentifySigner,
@@ -95,6 +99,8 @@ export default {
 		return {
 			hasLoading: false,
 			signerToEdit: {},
+			modalSrc: '',
+			showSignModal: false,
 			canRequestSign: loadState('libresign', 'can_request_sign', false),
 		}
 	},
@@ -105,11 +111,13 @@ export default {
 					!Object.hasOwn(this.filesStore.getFile(), 'requested_by')
 					|| this.filesStore.getFile().requested_by.uid === getCurrentUser().uid
 				)
+				&& !this.filesStore.isPartialSigned()
 				&& !this.filesStore.isFullSigned()
 				&& this.filesStore.getFile()?.signers?.length > 0
 		},
 		canSign() {
 			return !this.filesStore.isFullSigned()
+				&& this.filesStore.getFile().status > 0
 				&& this.filesStore.getFile()?.signers?.filter(signer => signer.me).length > 0
 		},
 		dataSigners() {
@@ -129,6 +137,9 @@ export default {
 		unsubscribe('libresign:edit-signer')
 	},
 	methods: {
+		closeModal() {
+			this.showSignModal = false
+		},
 		validationFile() {
 			this.$router.push({ name: 'validationFile', params: { uuid: this.filesStore.getFile().uuid } })
 		},
@@ -166,7 +177,8 @@ export default {
 					return accumulator
 				}, '')
 			const route = this.$router.resolve({ name: 'SignPDF', params: { uuid } })
-			window.location.href = route.href
+			this.modalSrc = route.href
+			this.showSignModal = true
 		},
 		async save() {
 			this.hasLoading = true
@@ -227,4 +239,9 @@ export default {
 	box-sizing: border-box;
 	grid-gap: 10px;
 }
+
+.iframe {
+	width: 100%;
+	height: 100%;
+}
 </style>
diff --git a/src/router/router.js b/src/router/router.js
index 96c28bdc2f..4fafd2ccf5 100644
--- a/src/router/router.js
+++ b/src/router/router.js
@@ -143,7 +143,7 @@ const router = new Router({
 		},
 		{
 			path: '/f/timeline/sign',
-			name: 'signFiles',
+			name: 'timeline',
 			component: () => import('../views/Timeline/Timeline.vue'),
 		},
 		{
diff --git a/src/store/files.js b/src/store/files.js
index 197bcd8e8f..eee513abf3 100644
--- a/src/store/files.js
+++ b/src/store/files.js
@@ -69,8 +69,9 @@ export const useFilesStore = defineStore('files', {
 			if (!Object.hasOwn(this.getFile(), 'signers')) {
 				return false
 			}
-			return this.files[this.selectedNodeId].signers
-				.filter(signer => signer.signed?.length > 0).length === this.files[this.selectedNodeId].signers.length
+			return this.files[this.selectedNodeId].signers.length > 0
+				&& this.files[this.selectedNodeId].signers
+					.filter(signer => signer.signed?.length > 0).length === this.files[this.selectedNodeId].signers.length
 		},
 		getSubtitle() {
 			if (this.selectedNodeId === 0) {