Summary
Details
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.
Change History
[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 late December 2025.
[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.
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.
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