We are pleased to announce that we worked with Adobe to improve access to PDF files. You can now open PDF files directly in Adobe Reader – and the PDF file will remain connected to SharePoint Online. You can also edit and save your changes to SharePoint Online from the desktop. And further, you can now use versioning (check-in and check-out) with PDF files for better management and review. We have improved the experience while maintaining the level of security you expect from Office 365.


NOTE:  This feature is currently designed to be used with HTTPS, and will not work as expected with the HTTP connection available on Office 365 for professionals and small businesses sites.


To take advantage of this update, do the following steps.  

  • Wait for the update to the SharePoint Online service, which is in progress now.
  • Check the Keep me signed in box when you log in to a SharePoint Online site.

This SharePoint Online update is currently being rolled out worldwide along with several other new features.


Thank you for your feedback and patience,

The SharePoint Online Team


1To add your root site to the Trusted Sites security zone, open Internet Explorer, browse to your root SharePoint online site, click Tools, and then click Internet options. Click the Security tab, click Trusted sites, click Sites, and then click Add