diff --git a/src/helpers/index.js b/src/helpers/index.js
index 9164830e01..7545a9133f 100644
--- a/src/helpers/index.js
+++ b/src/helpers/index.js
@@ -76,5 +76,4 @@ export {
 
 export { default as isDocument } from './isDocument.js'
 export { default as isPdf } from './isPdf.js'
-export { default as isPublic } from './isPublicPage.js'
 export { default as isDownloadHidden } from './isDownloadHidden.js'
diff --git a/src/helpers/isPublicPage.js b/src/helpers/isPublicPage.js
deleted file mode 100644
index d53a189dc6..0000000000
--- a/src/helpers/isPublicPage.js
+++ /dev/null
@@ -1,16 +0,0 @@
-/**
- * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
- * SPDX-License-Identifier: AGPL-3.0-or-later
- */
-/**
- * Determines if the resource is a public share
- * @return {boolean}
- */
-function isPublic() {
-	/** @type HTMLInputElement */
-	const publicElement = document.getElementById('isPublic')
-
-	return Boolean(publicElement) && publicElement.value === '1'
-}
-
-export default isPublic
diff --git a/src/public.js b/src/public.js
index ce8e7e8bc4..76660f9b90 100644
--- a/src/public.js
+++ b/src/public.js
@@ -3,8 +3,8 @@
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 
+import { isPublicShare } from '@nextcloud/sharing/public'
 import {
-	isPublic,
 	isPdf,
 	isDocument,
 	isDownloadHidden,
@@ -13,7 +13,7 @@ import { getCapabilities } from './services/capabilities.ts'
 import NewFileMenu from './view/NewFileMenu.js'
 
 document.addEventListener('DOMContentLoaded', () => {
-	if (!isPublic() || !OCA.Viewer) {
+	if (!isPublicShare() || !OCA.Viewer) {
 		return
 	}
 
diff --git a/src/view/FilesAppIntegration.js b/src/view/FilesAppIntegration.js
index 10ec5f37c7..62c229150a 100644
--- a/src/view/FilesAppIntegration.js
+++ b/src/view/FilesAppIntegration.js
@@ -6,6 +6,7 @@
 import { generateUrl } from '@nextcloud/router'
 import { getCurrentUser } from '@nextcloud/auth'
 import { getFilePickerBuilder, spawnDialog } from '@nextcloud/dialogs'
+import { isPublicShare } from '@nextcloud/sharing/public'
 import axios from '@nextcloud/axios'
 import { emit } from '@nextcloud/event-bus'
 import { getCurrentDirectory } from '../helpers/filesApp.js'
@@ -17,8 +18,6 @@ import {
 } from '@nextcloud/files'
 import SaveAs from '../components/Modal/SaveAs.vue'
 
-const isPublic = document.getElementById('isPublic') && document.getElementById('isPublic').value === '1'
-
 export default {
 
 	fileNode: undefined,
@@ -126,7 +125,7 @@ export default {
 			return
 		}
 
-		if (isPublic) {
+		if (isPublicShare()) {
 			console.error('[FilesAppIntegration] Sharing is not supported')
 			return
 		}
@@ -150,7 +149,7 @@ export default {
 	},
 
 	insertGraphic(insertFile) {
-		if (isPublic) {
+		if (isPublicShare()) {
 			console.error('[FilesAppIntegration] insertGraphic is not supported')
 		}
 
@@ -322,7 +321,7 @@ export default {
 		}
 		entry.append(label)
 
-		const isFileOwner = !isPublic && this.getFileModel() && typeof this.getFileModel().get('shareOwner') === 'undefined'
+		const isFileOwner = !isPublicShare() && this.getFileModel() && typeof this.getFileModel().get('shareOwner') === 'undefined'
 		const canEdit = this.getFileModel() && !!(this.getFileModel().get('permissions') & OC.PERMISSION_UPDATE)
 		if (isFileOwner && canEdit && !view.IsCurrentView) {
 			const removeButton = $('<div class="icon-close" title="' + t('richdocuments', 'Remove user') + '"/>')
@@ -406,7 +405,7 @@ export default {
 			return
 		}
 
-		if (isPublic || !OCA?.Files?.Sidebar) {
+		if (isPublicShare() || !OCA?.Files?.Sidebar) {
 			console.error('[FilesAppIntegration] Versions are not supported')
 			return
 		}
@@ -491,7 +490,7 @@ export default {
 	},
 
 	async getFileNode(forceFetch = false) {
-		if (isPublic) {
+		if (isPublicShare()) {
 			return
 		}
 
diff --git a/src/view/Office.vue b/src/view/Office.vue
index cb1e01ad51..07b27e594f 100644
--- a/src/view/Office.vue
+++ b/src/view/Office.vue
@@ -103,6 +103,7 @@ import {
 	generateUrl,
 	imagePath,
 } from '@nextcloud/router'
+import { isPublicShare, getSharingToken } from '@nextcloud/sharing/public'
 import { getCapabilities } from './../services/capabilities.ts'
 import {
 	generateCSSVarTokens,
@@ -117,7 +118,6 @@ import saveAs from '../mixins/saveAs.js'
 import uiMention from '../mixins/uiMention.js'
 import version from '../mixins/version.js'
 import { getCurrentUser, getGuestNickname } from '@nextcloud/auth'
-import { getSharingToken } from '@nextcloud/sharing/public'
 import { shouldAskForGuestName } from '../helpers/guestName.js'
 
 const FRAME_DOCUMENT = 'FRAME_DOCUMENT'
@@ -231,7 +231,7 @@ export default {
 			return !!window.TESTING
 		},
 		isPublic() {
-			return document.getElementById('isPublic')?.value === '1'
+			return isPublicShare()
 		},
 		shareToken() {
 			return getSharingToken()