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Microsoft SharePoint and Microsoft OneDrive: New PDF compression feature

Microsoft 365 Message Center Archive by Merill Fernando · Microsoft may not have sent this notice to your tenant.
SharePoint OnlineMicrosoft OneDrive
Microsoft 365 admin center

Rollout

Roadmap
487440

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 Aug 2025 early August 2025 → late August 2025
  • Seen 30 May 2025 mid-May 2025, late May 2025, early June 2025 → early July 2025, late July 2025, early August 2025
  • Seen 7 May 2025 late April 2025, early May 2025 → late May 2025, early June 2025

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, with source markup removed
Updated August 14, 2025: We have updated the timeline. Thank you for your patience. Coming soon: Users will be able to use the new Compress feature to reduce the file sizes of PDFs stored on Microsoft OneDrive for the web or Microsoft SharePoint. Users can choose from three different compression levels. This message is associated with Microsoft 365 Roadmap ID 487440. When this will happen: Targeted Release: We will begin rolling out early July 2025 (previously late April) and expect to complete by late July 2025 (previously early May). General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out late July 2025 (previously late May) and expect to complete by late August 2025 (previously early August). How this will affect your organization: To compress PDF files for a smaller size: 1. Open a PDF in OneDrive for the web (in SharePoint, go to the document library and choose Preview): 2. Select the Compress button at the top of the screen: 3. Select a compression level and then select Save a copy to save the compressed file: A progress notification will appear at the bottom of the screen. After the compression is complete, select Open from the notification to view the compressed file: FAQ What is the quality and subsampling for each compression level? We offer three levels of image compression. All use lossy compression and chroma subsampling to reduce file sizes while maintaining visual quality. The options are:  Light compression: Apply 4:2:0 color subsampling and reduce 25% of image pixels.  Medium compression: Apply 4:2:0 color subsampling and reduce 50% of image pixels.  Heavy compression: Apply 4:2:0 color subsampling and reduce 75% of image pixels. Users can compress one PDF at a time. The original file must be smaller than 300 MB. This feature is on by default. What you need to do to prepare: Note: Some users may see this feature before other users in your organization. This rollout will happen automatically by the specified dates with no admin action required before the rollout. You may want to notify your users about this change and update any relevant documentation. Before rollout, we will update this post with new documentation.

What changed

Between archive captures, newest first

  1. Updated May 30,August 14, 2025: We have updated the timeline below. timeline. Thank you for your patience.   Coming soon: Users will be able to use the new Compress feature … out late July 2025 (previously late May) and expect to complete by earlylate August 2025 (previously early June).August). How this will affect your organization: To compress PDF files for a …

    • Services SharePoint Online, OneDrive for Business → SharePoint Online, Microsoft OneDrive

    Updated May 7,30, 2025: We have updated the timeline below. Thank you for your patience.    Coming soon: Users will be able to use the new Compress feature … 487440. When this will happen: Targeted Release: We will begin rolling out mid-Mayearly July 2025 (previously late April) and expect to complete by late MayJuly 2025 (previously early May). General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out late MayJuly 2025 (previously earlylate May) and expect to complete by early JuneAugust 2025 (previously mid-May).early June). How this will affect your organization: To compress PDF files for a …

    • Services SharePoint Online, Microsoft OneDrive → SharePoint Online, OneDrive for Business
    • Services SharePoint Online, OneDrive for Business → SharePoint Online, Microsoft OneDrive
    • Tags New feature, User impact → Updated message, New feature, User impact

    Updated May 7, 2025: We have updated the timeline below. Thank you for your patience. Coming soon: Users will be able to use the new Compress feature … 487440. When this will happen: Targeted Release: We will begin rolling out mid-May 2025 (previously late April 2025 April) and expect to complete by earlylate May 2025.2025 (previously early May). General Availability (Worldwide, GCC, GCC High, DoD): We will begin rolling out earlylate May 2025 (previously early May) and expect to complete by mid-May 2025.early June 2025 (previously mid-May). How this will affect your organization: To compress PDF files for a …

  5. · first version seen

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