Powerpoint file (PPTX) is not displayed
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Problem
After attaching and embedding Powerpoint File (PPTX) in a Confluence, the page doesn't display or render the slides. This happens to some of the Powerpoint Files and affecting all users.
The following appears in the atlassian-confluence.log:
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2014-04-22 12:35:33,475 WARN [http-80-65] [com.benryan.conversion.PPTSlideServlet] doGet Conversion task timed out for attachment : File.pptx with page number 1, waited : 300, now executing in background.
-- url: /plugins/servlet/pptslide | userName: user | referer: http://localhost:8090/viewpage.action?pageId=39651776Cause
The WARN above is shown when Confluence cannot render a slide of PPTX within 300 milliseconds. PPTX Files are only supported in Confluence 5.6 or greater, and will fail to render.
Workaround
Delete the PPTX attachments, convert them to PPT (Office 2007) and reupload
Resolution
Upgrade to Confluence 5.6 or greater CONFSERVER-25421 - Office Connector throws an ArrayIndexOutOfBounds exception trying to display a powerpoint.
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