Updated January 13, 2026: We have updated the timeline. Thank you for your patience.
[Introduction]
To improve mobile productivity and streamline file access, Outlook for Android will soon support in-app PDF attachment previews. This update aligns with user feedback requesting faster, more integrated document viewing experiences without needing to switch apps.
This message is associated with Roadmap ID 520386.
[When this will happen:]
General Availability (Worldwide): Rollout begins in late November 2025 and is expected to complete by end of January 2026 (previously late December).
[How this affects your organization:]
Who is affected:
- All users of Outlook for Android across commercial and education tenants.
What will happen:
- Users will be able to preview PDF attachments directly within the Outlook for Android app.
- The built-in previewer will launch automatically when a PDF is opened.
- Users can still choose to open PDFs in other apps via the overflow menu.
- This feature will be enabled by default; no admin configuration is required.
[What you can do to prepare:]
No action is required. This feature will be enabled automatically.
Optional steps:
- Communicate this change to helpdesk staff to reduce potential support inquiries.
- Update internal documentation if you reference mobile attachment handling.
- If your organization prefers users to use a specific PDF viewer, consider communicating usage guidance.
[Compliance considerations:]
No compliance considerations identified, review as appropriate for your organization.
Source: Microsoft
<<< [MC1182710] Archive
Tooltip: View earlier revisions of this post
Latest Posts
- (Updated) Microsoft Teams frontline BYOD onboarding wizard [MC1184994]
![(Updated) Microsoft Teams frontline BYOD onboarding wizard [MC1184994] 2 pexels cantuariabruno 774448](data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==)
- (Updated) Microsoft Teams: Rule-based enablement of Microsoft 365 third-party apps in the Teams admin center [MC1085133]
![(Updated) Microsoft Teams: Rule-based enablement of Microsoft 365 third-party apps in the Teams admin center [MC1085133] 3 ai generated 8262909 1920](data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==)
- Amazon Connect makes it easier to manage recurring overrides for hours of operation

- (Updated) Microsoft Teams: Unified attachment flow on Teams Mobile [MC1070854]
![(Updated) Microsoft Teams: Unified attachment flow on Teams Mobile [MC1070854] 5 pexels padrinan 1111372](data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==)
![(Updated) Outlook for Android supports PDF attachment preview [MC1182710] 1 (Updated) Outlook for Android supports PDF attachment preview [MC1182710]](https://mwpro.co.uk/wp-content/uploads/2024/08/pexels-kelly-1179532-2876511-1024x683.webp)
![(Updated) Microsoft Teams frontline BYOD onboarding wizard [MC1184994] 2 pexels cantuariabruno 774448](https://mwpro.co.uk/wp-content/uploads/2025/06/pexels-cantuariabruno-774448-150x150.webp)
![(Updated) Microsoft Teams: Rule-based enablement of Microsoft 365 third-party apps in the Teams admin center [MC1085133] 3 ai generated 8262909 1920](https://mwpro.co.uk/wp-content/uploads/2025/06/ai-generated-8262909_1920-150x150.webp)

![(Updated) Microsoft Teams: Unified attachment flow on Teams Mobile [MC1070854] 5 pexels padrinan 1111372](https://mwpro.co.uk/wp-content/uploads/2025/06/pexels-padrinan-1111372-150x150.webp)
![(Updated) Book a workspace when creating an event [MC1186361] 7 (Updated) Book a workspace when creating an event [MC1186361]](https://mwpro.co.uk/wp-content/uploads/2025/06/pexels-fox-58267-24902948-96x96.webp)