Fix Adobe Acrobat Missing from Outlook PDF Share Menu on iPhone
Question details
The user is unable to select Adobe Acrobat to open PDF attachments because the app no longer appears in the iOS Share menu within the Outlook app.

- Product
- iOS Outlook and PDF Readers
- Device & OS
- iPhone (iOS)
- Scenario
- Attempting to open a PDF email attachment from the Outlook app into a dedicated third-party PDF reading application.
- Observed behavior
- The preferred PDF viewer is entirely missing from the standard iOS sharing extensions and cannot be selected.
Ensure that both your Outlook app and your PDF reader are fully updated to their latest versions via the App Store, and perform a quick restart of your iPhone to clear any temporary iOS extension glitches.
Manually Edit the iOS Share Sheet Actions
Customizing the iOS Share menu allows you to manually re-add and prioritize apps that have been hidden or removed from the default view.
Sometimes iOS automatically hides certain apps from the Share sheet if they aren't used frequently or after a system update. You can easily unhide them by editing the share list directly from the Outlook preview window.
Launch the Outlook app on your iPhone, navigate to the email containing the PDF, and tap the attachment to open the standard iOS preview.
Tap the Share icon (a square with an upward-pointing arrow) typically located in the top-right or bottom-left corner of the screen.
In the row displaying app icons, swipe all the way to the left until you see the 'More' option represented by three dots, and tap it.
Tap 'Edit' in the top-right corner of the Apps list. Find Adobe Acrobat under the 'Suggestions' section, tap the green '+' icon to add it to your Favorites, and tap 'Done' to save your changes.

Reinstall the PDF Application
Reinstalling the app forces iOS to freshly re-register its file-handling extensions, resolving issues where the system fails to recognize the app as a valid PDF reader.
Open and Edit PDFs on iPhone with WPS Office
If your current PDF app isn't showing up or functioning correctly, WPS Office offers a seamless, reliable alternative for viewing, annotating, and managing PDF attachments directly from Outlook on your iPhone.
- 1. Download WPS Office: Get the free WPS Office app from the Apple App Store and complete the installation.
- 2. Open your Outlook attachment: Tap the PDF file in your Outlook email to preview it, then tap the Share icon.
- 3. Select WPS Office: Swipe through the app icons in the Share menu and tap 'WPS Office' to immediately open and edit your document.

Frequently Asked Questions
Why do apps randomly disappear from the iPhone share menu?
Apps can disappear from the iOS Share sheet due to minor software glitches, recent app updates that temporarily reset file permissions, or if the app was offloaded by the iOS 'Offload Unused Apps' storage optimization feature.
How do I make a PDF open directly in an app instead of the Outlook preview?
iOS natively defaults to its built-in previewer for file attachments. You must open the preview first, tap the Share icon, and select your preferred app. Currently, iOS does not allow bypassing the native preview to launch a third-party app directly from inside Outlook.
What should I do if the 'More' option doesn't show my PDF app at all?
If your preferred app is not listed under the 'More' menu, first try restarting your iPhone. If it is still missing, delete and reinstall the PDF app from the App Store to force the iOS system to recognize its sharing extensions.




