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FromTheArctic's avatar
FromTheArctic
Copper Contributor
Feb 26, 2025

Office.js preview features release

Office.js for PowerPoint has had a couple of preview features (getImageAsBase64, getSlideAsBase64) in preview now for nearly a year. 

I've done my best to search for any updates from the office.js on release timeline for these features with no luck. 

These two API calls are super convenient and enable features in the add-ins for PowerPoint which is near impossible to create using alternative solutions. 

Anyone out there with any knowledge on when we can expect these beta/preview features to be production ready?

3 Replies

  • Leefuasn's avatar
    Leefuasn
    Iron Contributor

    What does this do? And where to download the preview build?

  • FromTheArctic's avatar
    FromTheArctic
    Copper Contributor

    Yes, thanks!

    The preview features I mentioned were released a few months back (May I think) so we're good :) I hope Microsoft will help the community with some information about release timelines for preview features. 

  • XanderHart's avatar
    XanderHart
    Iron Contributor

    The Office JS preview feature requires enrollment in the Office Insider program and enabling the @preview tag in the code to call experimental APIs.

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