Outlook for Android supports PDF attachment preview
From Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.Rollout
- Roadmap
- 520386
Rollout dates are often only in the text. When Microsoft moves them, the change shows under "What changed".
Schedule dates changed in the text
Date phrases in schedule sentences differ between the versions this installation saw- Seen 14 Jan 2026
late December 2025→ end of January 2026
Read from date phrases in Microsoft's text, not from notice metadata. A changed phrase can be a moved rollout, a new milestone or just rewording; "What changed" below shows which.
What the notice says
Microsoft’s text, safely structuredUpdated 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.
What changed
Between archive captures, newest first- Tags
New feature, User impact→ Updated message, New feature, User impact
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 … Rollout begins in late November 2025 and is expected to complete by end of January 2026 (previously late
December 2025.December). How this affects your organization: Who is affected: All users of Outlook …- Tags
- · first version seen
Learn more
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