[What and Why:]
We’re updating the PDF preview experience in Outlook for iOS. This change adds support for Microsoft Information Protection (MIP)–labeled PDFs and introduces a built-in controls toolbar to improve navigation and search when viewing PDF attachments.
This message is associated with Roadmap ID 564970.
[Rollout Schedule:]
General Availability (Worldwide, GCC, GCC High, DoD): Rollout begins in early July 2026 and is expected to complete by early September 2026.
[Impact on Your Organization:]
Who is affected: All users who view PDF attachments in Outlook for iOS.
Platforms/Services:
- Outlook for iOS (mobile)
- PDF attachment preview
What will happen:
- Users can preview MIP-labeled (protected) PDF files directly in Outlook for iOS.
- A controls toolbar appears at the bottom of the PDF preview, enabling:
- Zoom in and out
- Page navigation
- Keyword search within the PDF
- The Open in Copilot button has moved to the More (…) menu in the upper-right corner.
- The feature is enabled by default.
- No changes are made to current admin configurations or user workflows beyond the enhanced preview experience.
[Action Required / Recommendations:]
- No action is required. This feature is enabled automatically.
- Consider notifying end users about the improved PDF preview and new toolbar controls to reduce help desk inquiries.
- Update internal documentation or training materials if you reference Outlook mobile PDF behavior.
[Compliance considerations:]
No compliance considerations identified, review as appropriate for your organization.
Source: Microsoft
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