MC1384419 High Major change
Improved PDF preview in Outlook for iOS
Summary AI-generated
Outlook for iOS is updating PDF preview to support MIP-labeled PDFs and a new controls toolbar, improving navigation and search for PDF attachments.
Suggested actions AI-generated
- Notify end users about improved PDF preview and controls toolbar
- Update internal documentation or training materials if referencing Outlook mobile PDF previews
Written by Azure OpenAI (gpt-4.1) from the text of the post below. It can be incomplete or wrong; the original post is authoritative.
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Original post from Microsoft
[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.
Additional details from Microsoft
- RoadmapIds
- 564970
- Summary
- Outlook for iOS will enhance PDF preview by supporting Microsoft Information Protection-labeled PDFs and adding a controls toolbar for zoom, navigation, and search. The update rolls out from July to September 2026, is enabled by default, requires no admin action, and maintains existing workflows.
- Platforms
- iOS