A desktop publishing application from Microsoft that focuses on page layout and graphic design.
It depends on which type of Publisher license is installed on the computer.
- If Publisher is the Microsoft 365 subscription version: it can continue to be used with current functionality until October 1, 2026. After that, Microsoft 365 subscribers will no longer be able to access Publisher, and will no longer be able to open or edit Publisher files in Publisher.
- If Publisher is a perpetual one-time-purchase version: it can still be installed and used beyond October 2026, but support will have ended. Support for the perpetual version ends on October 13, 2026.
For existing files:
- With Microsoft 365 Publisher, existing
.pubfiles should be converted before October 2026 if continued access is needed in another format. Microsoft recommends converting to PDF or Word. - With a perpetual version, existing Publisher files can still be accessed and edited after support ends.
If there are many .pub files, a file search for .Pub on the PC, OneDrive, or SharePoint can help locate them, and bulk export to PDF can be done with a PowerShell script or other automation.